205326320

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{977}}^1$

素因数の和:1098

約数の個数: 80

約数和(自身を含む): 497700288

約数和(自身を除く): 292373968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 71, 74, 80, 142, 148, 185, 284, 296, 355, 370, 568, 592, 710, 740, 977, 1136, 1420, 1480, 1954, 2627, 2840, 2960, 3908, 4885, 5254, 5680, 7816, 9770, 10508, 13135, 15632, 19540, 21016, 26270, 36149, 39080, 42032, 52540, 69367, 72298, 78160, 105080, 138734, 144596, 180745, 210160, 277468, 289192, 346835, 361490, 554936, 578384, 693670, 722980, 1109872, 1387340, 1445960, 2566579, 2774680, 2891920, 5133158, 5549360, 10266316, 12832895, 20532632, 25665790, 41065264, 51331580, 102663160, 205326320]

約数ペア:

[(1, 205326320), (2, 102663160), (4, 51331580), (5, 41065264), (8, 25665790), (10, 20532632), (16, 12832895), (20, 10266316), (37, 5549360), (40, 5133158), (71, 2891920), (74, 2774680), (80, 2566579), (142, 1445960), (148, 1387340), (185, 1109872), (284, 722980), (296, 693670), (355, 578384), (370, 554936), (568, 361490), (592, 346835), (710, 289192), (740, 277468), (977, 210160), (1136, 180745), (1420, 144596), (1480, 138734), (1954, 105080), (2627, 78160), (2840, 72298), (2960, 69367), (3908, 52540), (4885, 42032), (5254, 39080), (5680, 36149), (7816, 26270), (9770, 21016), (10508, 19540), (13135, 15632)]