20998823940

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{643}}^1\times {\mathrm{1061}}^1$

素因数の和:1744

約数の個数: 240

約数和(自身を含む): 69514441920

約数和(自身を除く): 48515617980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 81, 90, 95, 108, 114, 135, 162, 171, 180, 190, 228, 270, 285, 324, 342, 380, 405, 513, 540, 570, 643, 684, 810, 855, 1026, 1061, 1140, 1286, 1539, 1620, 1710, 1929, 2052, 2122, 2565, 2572, 3078, 3183, 3215, 3420, 3858, 4244, 5130, 5305, 5787, 6156, 6366, 6430, 7695, 7716, 9549, 9645, 10260, 10610, 11574, 12217, 12732, 12860, 15390, 15915, 17361, 19098, 19290, 20159, 21220, 23148, 24434, 28647, 28935, 30780, 31830, 34722, 36651, 38196, 38580, 40318, 47745, 48868, 52083, 57294, 57870, 60477, 61085, 63660, 69444, 73302, 80636, 85941, 86805, 95490, 100795, 104166, 109953, 114588, 115740, 120954, 122170, 143235, 146604, 171882, 173610, 181431, 183255, 190980, 201590, 208332, 219906, 241908, 244340, 260415, 286470, 302385, 329859, 343764, 347220, 362862, 366510, 403180, 429705, 439812, 520830, 544293, 549765, 572940, 604770, 659718, 682223, 725724, 733020, 859410, 907155, 989577, 1041660, 1088586, 1099530, 1209540, 1319436, 1364446, 1632879, 1649295, 1718820, 1814310, 1979154, 2046669, 2177172, 2199060, 2721465, 2728892, 3265758, 3298590, 3411115, 3628620, 3958308, 4093338, 4947885, 5442930, 6140007, 6531516, 6597180, 6822230, 8164395, 8186676, 9895770, 10233345, 10885860, 12280014, 12962237, 13644460, 16328790, 18420021, 19791540, 20466690, 24560028, 25924474, 30700035, 32657580, 36840042, 38886711, 40933380, 51848948, 55260063, 61400070, 64811185, 73680084, 77773422, 92100105, 110520126, 116660133, 122800140, 129622370, 155546844, 184200210, 194433555, 221040252, 233320266, 259244740, 276300315, 349980399, 368400420, 388867110, 466640532, 552600630, 583300665, 699960798, 777734220, 1049941197, 1105201260, 1166601330, 1399921596, 1749901995, 2099882394, 2333202660, 3499803990, 4199764788, 5249705985, 6999607980, 10499411970, 20998823940]

約数ペア:

[(1, 20998823940), (2, 10499411970), (3, 6999607980), (4, 5249705985), (5, 4199764788), (6, 3499803990), (9, 2333202660), (10, 2099882394), (12, 1749901995), (15, 1399921596), (18, 1166601330), (19, 1105201260), (20, 1049941197), (27, 777734220), (30, 699960798), (36, 583300665), (38, 552600630), (45, 466640532), (54, 388867110), (57, 368400420), (60, 349980399), (76, 276300315), (81, 259244740), (90, 233320266), (95, 221040252), (108, 194433555), (114, 184200210), (135, 155546844), (162, 129622370), (171, 122800140), (180, 116660133), (190, 110520126), (228, 92100105), (270, 77773422), (285, 73680084), (324, 64811185), (342, 61400070), (380, 55260063), (405, 51848948), (513, 40933380), (540, 38886711), (570, 36840042), (643, 32657580), (684, 30700035), (810, 25924474), (855, 24560028), (1026, 20466690), (1061, 19791540), (1140, 18420021), (1286, 16328790), (1539, 13644460), (1620, 12962237), (1710, 12280014), (1929, 10885860), (2052, 10233345), (2122, 9895770), (2565, 8186676), (2572, 8164395), (3078, 6822230), (3183, 6597180), (3215, 6531516), (3420, 6140007), (3858, 5442930), (4244, 4947885), (5130, 4093338), (5305, 3958308), (5787, 3628620), (6156, 3411115), (6366, 3298590), (6430, 3265758), (7695, 2728892), (7716, 2721465), (9549, 2199060), (9645, 2177172), (10260, 2046669), (10610, 1979154), (11574, 1814310), (12217, 1718820), (12732, 1649295), (12860, 1632879), (15390, 1364446), (15915, 1319436), (17361, 1209540), (19098, 1099530), (19290, 1088586), (20159, 1041660), (21220, 989577), (23148, 907155), (24434, 859410), (28647, 733020), (28935, 725724), (30780, 682223), (31830, 659718), (34722, 604770), (36651, 572940), (38196, 549765), (38580, 544293), (40318, 520830), (47745, 439812), (48868, 429705), (52083, 403180), (57294, 366510), (57870, 362862), (60477, 347220), (61085, 343764), (63660, 329859), (69444, 302385), (73302, 286470), (80636, 260415), (85941, 244340), (86805, 241908), (95490, 219906), (100795, 208332), (104166, 201590), (109953, 190980), (114588, 183255), (115740, 181431), (120954, 173610), (122170, 171882), (143235, 146604)]