20876243640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{96703}}^1$

素因数の和:96981

約数の個数: 128

約数和(自身を含む): 71854940160

約数和(自身を除く): 50978696520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 257, 280, 420, 514, 771, 840, 1028, 1285, 1542, 1799, 2056, 2570, 3084, 3598, 3855, 5140, 5397, 6168, 7196, 7710, 8995, 10280, 10794, 14392, 15420, 17990, 21588, 26985, 30840, 35980, 43176, 53970, 71960, 96703, 107940, 193406, 215880, 290109, 386812, 483515, 580218, 676921, 773624, 967030, 1160436, 1353842, 1450545, 1934060, 2030763, 2320872, 2707684, 2901090, 3384605, 3868120, 4061526, 5415368, 5802180, 6769210, 8123052, 10153815, 11604360, 13538420, 16246104, 20307630, 24852671, 27076840, 40615260, 49705342, 74558013, 81230520, 99410684, 124263355, 149116026, 173968697, 198821368, 248526710, 298232052, 347937394, 372790065, 497053420, 521906091, 596464104, 695874788, 745580130, 869843485, 994106840, 1043812182, 1391749576, 1491160260, 1739686970, 2087624364, 2609530455, 2982320520, 3479373940, 4175248728, 5219060910, 6958747880, 10438121820, 20876243640]

約数ペア:

[(1, 20876243640), (2, 10438121820), (3, 6958747880), (4, 5219060910), (5, 4175248728), (6, 3479373940), (7, 2982320520), (8, 2609530455), (10, 2087624364), (12, 1739686970), (14, 1491160260), (15, 1391749576), (20, 1043812182), (21, 994106840), (24, 869843485), (28, 745580130), (30, 695874788), (35, 596464104), (40, 521906091), (42, 497053420), (56, 372790065), (60, 347937394), (70, 298232052), (84, 248526710), (105, 198821368), (120, 173968697), (140, 149116026), (168, 124263355), (210, 99410684), (257, 81230520), (280, 74558013), (420, 49705342), (514, 40615260), (771, 27076840), (840, 24852671), (1028, 20307630), (1285, 16246104), (1542, 13538420), (1799, 11604360), (2056, 10153815), (2570, 8123052), (3084, 6769210), (3598, 5802180), (3855, 5415368), (5140, 4061526), (5397, 3868120), (6168, 3384605), (7196, 2901090), (7710, 2707684), (8995, 2320872), (10280, 2030763), (10794, 1934060), (14392, 1450545), (15420, 1353842), (17990, 1160436), (21588, 967030), (26985, 773624), (30840, 676921), (35980, 580218), (43176, 483515), (53970, 386812), (71960, 290109), (96703, 215880), (107940, 193406)]