40648420

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{521}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 88397568

約数和(自身を除く): 47749148

約数列:

[1, 2, 4, 5, 10, 20, 47, 83, 94, 166, 188, 235, 332, 415, 470, 521, 830, 940, 1042, 1660, 2084, 2605, 3901, 5210, 7802, 10420, 15604, 19505, 24487, 39010, 43243, 48974, 78020, 86486, 97948, 122435, 172972, 216215, 244870, 432430, 489740, 864860, 2032421, 4064842, 8129684, 10162105, 20324210, 40648420]

約数ペア:

[(1, 40648420), (2, 20324210), (4, 10162105), (5, 8129684), (10, 4064842), (20, 2032421), (47, 864860), (83, 489740), (94, 432430), (166, 244870), (188, 216215), (235, 172972), (332, 122435), (415, 97948), (470, 86486), (521, 78020), (830, 48974), (940, 43243), (1042, 39010), (1660, 24487), (2084, 19505), (2605, 15604), (3901, 10420), (5210, 7802)]