156745280

素因数分解:

$2^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6899}}^1$

素因数の和:6987

約数の個数: 56

約数和(自身を含む): 378561600

約数和(自身を除く): 221816320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 142, 160, 284, 320, 355, 568, 710, 1136, 1420, 2272, 2840, 4544, 5680, 6899, 11360, 13798, 22720, 27596, 34495, 55192, 68990, 110384, 137980, 220768, 275960, 441536, 489829, 551920, 979658, 1103840, 1959316, 2207680, 2449145, 3918632, 4898290, 7837264, 9796580, 15674528, 19593160, 31349056, 39186320, 78372640, 156745280]

約数ペア:

[(1, 156745280), (2, 78372640), (4, 39186320), (5, 31349056), (8, 19593160), (10, 15674528), (16, 9796580), (20, 7837264), (32, 4898290), (40, 3918632), (64, 2449145), (71, 2207680), (80, 1959316), (142, 1103840), (160, 979658), (284, 551920), (320, 489829), (355, 441536), (568, 275960), (710, 220768), (1136, 137980), (1420, 110384), (2272, 68990), (2840, 55192), (4544, 34495), (5680, 27596), (6899, 22720), (11360, 13798)]