21978928150

素因数分解:

$2^1\times 5^2\times {\mathrm{101}}^1\times {\mathrm{163}}^1\times {\mathrm{26701}}^1$

素因数の和:26977

約数の個数: 48

約数和(自身を含む): 41540408208

約数和(自身を除く): 19561480058

約数列:

[1, 2, 5, 10, 25, 50, 101, 163, 202, 326, 505, 815, 1010, 1630, 2525, 4075, 5050, 8150, 16463, 26701, 32926, 53402, 82315, 133505, 164630, 267010, 411575, 667525, 823150, 1335050, 2696801, 4352263, 5393602, 8704526, 13484005, 21761315, 26968010, 43522630, 67420025, 108806575, 134840050, 217613150, 439578563, 879157126, 2197892815, 4395785630, 10989464075, 21978928150]

約数ペア:

[(1, 21978928150), (2, 10989464075), (5, 4395785630), (10, 2197892815), (25, 879157126), (50, 439578563), (101, 217613150), (163, 134840050), (202, 108806575), (326, 67420025), (505, 43522630), (815, 26968010), (1010, 21761315), (1630, 13484005), (2525, 8704526), (4075, 5393602), (5050, 4352263), (8150, 2696801), (16463, 1335050), (26701, 823150), (32926, 667525), (53402, 411575), (82315, 267010), (133505, 164630)]