20212548720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{71191}}^1$

素因数の和:71240

約数の個数: 240

約数和(自身を含む): 77543465472

約数和(自身を除く): 57330916752

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 48, 52, 56, 60, 65, 70, 78, 80, 84, 91, 104, 105, 112, 120, 130, 140, 156, 168, 169, 182, 195, 208, 210, 240, 260, 273, 280, 312, 336, 338, 364, 390, 420, 455, 507, 520, 546, 560, 624, 676, 728, 780, 840, 845, 910, 1014, 1040, 1092, 1183, 1352, 1365, 1456, 1560, 1680, 1690, 1820, 2028, 2184, 2366, 2535, 2704, 2730, 3120, 3380, 3549, 3640, 4056, 4368, 4732, 5070, 5460, 5915, 6760, 7098, 7280, 8112, 9464, 10140, 10920, 11830, 13520, 14196, 17745, 18928, 20280, 21840, 23660, 28392, 35490, 40560, 47320, 56784, 70980, 71191, 94640, 141960, 142382, 213573, 283920, 284764, 355955, 427146, 498337, 569528, 711910, 854292, 925483, 996674, 1067865, 1139056, 1423820, 1495011, 1708584, 1850966, 1993348, 2135730, 2491685, 2776449, 2847640, 2990022, 3417168, 3701932, 3986696, 4271460, 4627415, 4983370, 5552898, 5695280, 5980044, 6478381, 7403864, 7475055, 7973392, 8542920, 9254830, 9966740, 11105796, 11960088, 12031279, 12956762, 13882245, 14807728, 14950110, 17085840, 18509660, 19435143, 19933480, 22211592, 23920176, 24062558, 25913524, 27764490, 29900220, 32391905, 36093837, 37019320, 38870286, 39866960, 44423184, 48125116, 51827048, 55528980, 59800440, 60156395, 64783810, 72187674, 74038640, 77740572, 84218953, 96250232, 97175715, 103654096, 111057960, 119600880, 120312790, 129567620, 144375348, 155481144, 168437906, 180469185, 192500464, 194351430, 222115920, 240625580, 252656859, 259135240, 288750696, 310962288, 336875812, 360938370, 388702860, 421094765, 481251160, 505313718, 518270480, 577501392, 673751624, 721876740, 777405720, 842189530, 962502320, 1010627436, 1263284295, 1347503248, 1443753480, 1554811440, 1684379060, 2021254872, 2526568590, 2887506960, 3368758120, 4042509744, 5053137180, 6737516240, 10106274360, 20212548720]

約数ペア:

[(1, 20212548720), (2, 10106274360), (3, 6737516240), (4, 5053137180), (5, 4042509744), (6, 3368758120), (7, 2887506960), (8, 2526568590), (10, 2021254872), (12, 1684379060), (13, 1554811440), (14, 1443753480), (15, 1347503248), (16, 1263284295), (20, 1010627436), (21, 962502320), (24, 842189530), (26, 777405720), (28, 721876740), (30, 673751624), (35, 577501392), (39, 518270480), (40, 505313718), (42, 481251160), (48, 421094765), (52, 388702860), (56, 360938370), (60, 336875812), (65, 310962288), (70, 288750696), (78, 259135240), (80, 252656859), (84, 240625580), (91, 222115920), (104, 194351430), (105, 192500464), (112, 180469185), (120, 168437906), (130, 155481144), (140, 144375348), (156, 129567620), (168, 120312790), (169, 119600880), (182, 111057960), (195, 103654096), (208, 97175715), (210, 96250232), (240, 84218953), (260, 77740572), (273, 74038640), (280, 72187674), (312, 64783810), (336, 60156395), (338, 59800440), (364, 55528980), (390, 51827048), (420, 48125116), (455, 44423184), (507, 39866960), (520, 38870286), (546, 37019320), (560, 36093837), (624, 32391905), (676, 29900220), (728, 27764490), (780, 25913524), (840, 24062558), (845, 23920176), (910, 22211592), (1014, 19933480), (1040, 19435143), (1092, 18509660), (1183, 17085840), (1352, 14950110), (1365, 14807728), (1456, 13882245), (1560, 12956762), (1680, 12031279), (1690, 11960088), (1820, 11105796), (2028, 9966740), (2184, 9254830), (2366, 8542920), (2535, 7973392), (2704, 7475055), (2730, 7403864), (3120, 6478381), (3380, 5980044), (3549, 5695280), (3640, 5552898), (4056, 4983370), (4368, 4627415), (4732, 4271460), (5070, 3986696), (5460, 3701932), (5915, 3417168), (6760, 2990022), (7098, 2847640), (7280, 2776449), (8112, 2491685), (9464, 2135730), (10140, 1993348), (10920, 1850966), (11830, 1708584), (13520, 1495011), (14196, 1423820), (17745, 1139056), (18928, 1067865), (20280, 996674), (21840, 925483), (23660, 854292), (28392, 711910), (35490, 569528), (40560, 498337), (47320, 427146), (56784, 355955), (70980, 284764), (71191, 283920), (94640, 213573), (141960, 142382)]