81330320

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{17231}}^1$

素因数の和:17303

約数の個数: 40

約数和(自身を含む): 192309120

約数和(自身を除く): 110978800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 4720, 17231, 34462, 68924, 86155, 137848, 172310, 275696, 344620, 689240, 1016629, 1378480, 2033258, 4066516, 5083145, 8133032, 10166290, 16266064, 20332580, 40665160, 81330320]

約数ペア:

[(1, 81330320), (2, 40665160), (4, 20332580), (5, 16266064), (8, 10166290), (10, 8133032), (16, 5083145), (20, 4066516), (40, 2033258), (59, 1378480), (80, 1016629), (118, 689240), (236, 344620), (295, 275696), (472, 172310), (590, 137848), (944, 86155), (1180, 68924), (2360, 34462), (4720, 17231)]