19707240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{809}}^1$

素因数の和:859

約数の個数: 128

約数和(自身を含む): 69984000

約数和(自身を除く): 50276760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 29, 30, 35, 40, 42, 56, 58, 60, 70, 84, 87, 105, 116, 120, 140, 145, 168, 174, 203, 210, 232, 280, 290, 348, 406, 420, 435, 580, 609, 696, 809, 812, 840, 870, 1015, 1160, 1218, 1618, 1624, 1740, 2030, 2427, 2436, 3045, 3236, 3480, 4045, 4060, 4854, 4872, 5663, 6090, 6472, 8090, 8120, 9708, 11326, 12135, 12180, 16180, 16989, 19416, 22652, 23461, 24270, 24360, 28315, 32360, 33978, 45304, 46922, 48540, 56630, 67956, 70383, 84945, 93844, 97080, 113260, 117305, 135912, 140766, 164227, 169890, 187688, 226520, 234610, 281532, 328454, 339780, 351915, 469220, 492681, 563064, 656908, 679560, 703830, 821135, 938440, 985362, 1313816, 1407660, 1642270, 1970724, 2463405, 2815320, 3284540, 3941448, 4926810, 6569080, 9853620, 19707240]

約数ペア:

[(1, 19707240), (2, 9853620), (3, 6569080), (4, 4926810), (5, 3941448), (6, 3284540), (7, 2815320), (8, 2463405), (10, 1970724), (12, 1642270), (14, 1407660), (15, 1313816), (20, 985362), (21, 938440), (24, 821135), (28, 703830), (29, 679560), (30, 656908), (35, 563064), (40, 492681), (42, 469220), (56, 351915), (58, 339780), (60, 328454), (70, 281532), (84, 234610), (87, 226520), (105, 187688), (116, 169890), (120, 164227), (140, 140766), (145, 135912), (168, 117305), (174, 113260), (203, 97080), (210, 93844), (232, 84945), (280, 70383), (290, 67956), (348, 56630), (406, 48540), (420, 46922), (435, 45304), (580, 33978), (609, 32360), (696, 28315), (809, 24360), (812, 24270), (840, 23461), (870, 22652), (1015, 19416), (1160, 16989), (1218, 16180), (1618, 12180), (1624, 12135), (1740, 11326), (2030, 9708), (2427, 8120), (2436, 8090), (3045, 6472), (3236, 6090), (3480, 5663), (4045, 4872), (4060, 4854)]