81223990

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{4019}}^1$

素因数の和:4116

約数の個数: 32

約数和(自身を含む): 152824320

約数和(自身を除く): 71600330

約数列:

[1, 2, 5, 10, 43, 47, 86, 94, 215, 235, 430, 470, 2021, 4019, 4042, 8038, 10105, 20095, 20210, 40190, 172817, 188893, 345634, 377786, 864085, 944465, 1728170, 1888930, 8122399, 16244798, 40611995, 81223990]

約数ペア:

[(1, 81223990), (2, 40611995), (5, 16244798), (10, 8122399), (43, 1888930), (47, 1728170), (86, 944465), (94, 864085), (215, 377786), (235, 345634), (430, 188893), (470, 172817), (2021, 40190), (4019, 20210), (4042, 20095), (8038, 10105)]