215501410

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1\times {\mathrm{881}}^1$

素因数の和:1350

約数の個数: 32

約数和(自身を含む): 395693424

約数和(自身を除く): 180192014

約数列:

[1, 2, 5, 10, 61, 122, 305, 401, 610, 802, 881, 1762, 2005, 4010, 4405, 8810, 24461, 48922, 53741, 107482, 122305, 244610, 268705, 353281, 537410, 706562, 1766405, 3532810, 21550141, 43100282, 107750705, 215501410]

約数ペア:

[(1, 215501410), (2, 107750705), (5, 43100282), (10, 21550141), (61, 3532810), (122, 1766405), (305, 706562), (401, 537410), (610, 353281), (802, 268705), (881, 244610), (1762, 122305), (2005, 107482), (4010, 53741), (4405, 48922), (8810, 24461)]