215857528

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{631}}^1\times {\mathrm{701}}^1$

素因数の和:1399

約数の個数: 32

約数和(自身を含む): 412607520

約数和(自身を除く): 196749992

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 631, 701, 1262, 1402, 2524, 2804, 5048, 5608, 38491, 42761, 76982, 85522, 153964, 171044, 307928, 342088, 442331, 884662, 1769324, 3538648, 26982191, 53964382, 107928764, 215857528]

約数ペア:

[(1, 215857528), (2, 107928764), (4, 53964382), (8, 26982191), (61, 3538648), (122, 1769324), (244, 884662), (488, 442331), (631, 342088), (701, 307928), (1262, 171044), (1402, 153964), (2524, 85522), (2804, 76982), (5048, 42761), (5608, 38491)]