320911920

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1553}}^1$

素因数の和:1620

約数の個数: 240

約数和(自身を含む): 1262544192

約数和(自身を除く): 941632272

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 41, 42, 45, 48, 56, 60, 63, 70, 72, 80, 82, 84, 90, 105, 112, 120, 123, 126, 140, 144, 164, 168, 180, 205, 210, 240, 246, 252, 280, 287, 315, 328, 336, 360, 369, 410, 420, 492, 504, 560, 574, 615, 630, 656, 720, 738, 820, 840, 861, 984, 1008, 1148, 1230, 1260, 1435, 1476, 1553, 1640, 1680, 1722, 1845, 1968, 2296, 2460, 2520, 2583, 2870, 2952, 3106, 3280, 3444, 3690, 4305, 4592, 4659, 4920, 5040, 5166, 5740, 5904, 6212, 6888, 7380, 7765, 8610, 9318, 9840, 10332, 10871, 11480, 12424, 12915, 13776, 13977, 14760, 15530, 17220, 18636, 20664, 21742, 22960, 23295, 24848, 25830, 27954, 29520, 31060, 32613, 34440, 37272, 41328, 43484, 46590, 51660, 54355, 55908, 62120, 63673, 65226, 68880, 69885, 74544, 86968, 93180, 97839, 103320, 108710, 111816, 124240, 127346, 130452, 139770, 163065, 173936, 186360, 191019, 195678, 206640, 217420, 223632, 254692, 260904, 279540, 318365, 326130, 372720, 382038, 391356, 434840, 445711, 489195, 509384, 521808, 559080, 573057, 636730, 652260, 764076, 782712, 869680, 891422, 955095, 978390, 1018768, 1118160, 1146114, 1273460, 1304520, 1337133, 1528152, 1565424, 1782844, 1910190, 1956780, 2228555, 2292228, 2546920, 2609040, 2674266, 2865285, 3056304, 3565688, 3820380, 3913560, 4011399, 4457110, 4584456, 5093840, 5348532, 5730570, 6685665, 7131376, 7640760, 7827120, 8022798, 8914220, 9168912, 10697064, 11461140, 13371330, 15281520, 16045596, 17828440, 20056995, 21394128, 22922280, 26742660, 32091192, 35656880, 40113990, 45844560, 53485320, 64182384, 80227980, 106970640, 160455960, 320911920]

約数ペア:

[(1, 320911920), (2, 160455960), (3, 106970640), (4, 80227980), (5, 64182384), (6, 53485320), (7, 45844560), (8, 40113990), (9, 35656880), (10, 32091192), (12, 26742660), (14, 22922280), (15, 21394128), (16, 20056995), (18, 17828440), (20, 16045596), (21, 15281520), (24, 13371330), (28, 11461140), (30, 10697064), (35, 9168912), (36, 8914220), (40, 8022798), (41, 7827120), (42, 7640760), (45, 7131376), (48, 6685665), (56, 5730570), (60, 5348532), (63, 5093840), (70, 4584456), (72, 4457110), (80, 4011399), (82, 3913560), (84, 3820380), (90, 3565688), (105, 3056304), (112, 2865285), (120, 2674266), (123, 2609040), (126, 2546920), (140, 2292228), (144, 2228555), (164, 1956780), (168, 1910190), (180, 1782844), (205, 1565424), (210, 1528152), (240, 1337133), (246, 1304520), (252, 1273460), (280, 1146114), (287, 1118160), (315, 1018768), (328, 978390), (336, 955095), (360, 891422), (369, 869680), (410, 782712), (420, 764076), (492, 652260), (504, 636730), (560, 573057), (574, 559080), (615, 521808), (630, 509384), (656, 489195), (720, 445711), (738, 434840), (820, 391356), (840, 382038), (861, 372720), (984, 326130), (1008, 318365), (1148, 279540), (1230, 260904), (1260, 254692), (1435, 223632), (1476, 217420), (1553, 206640), (1640, 195678), (1680, 191019), (1722, 186360), (1845, 173936), (1968, 163065), (2296, 139770), (2460, 130452), (2520, 127346), (2583, 124240), (2870, 111816), (2952, 108710), (3106, 103320), (3280, 97839), (3444, 93180), (3690, 86968), (4305, 74544), (4592, 69885), (4659, 68880), (4920, 65226), (5040, 63673), (5166, 62120), (5740, 55908), (5904, 54355), (6212, 51660), (6888, 46590), (7380, 43484), (7765, 41328), (8610, 37272), (9318, 34440), (9840, 32613), (10332, 31060), (10871, 29520), (11480, 27954), (12424, 25830), (12915, 24848), (13776, 23295), (13977, 22960), (14760, 21742), (15530, 20664), (17220, 18636)]