218725870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{881}}^1$

素因数の和:997

約数の個数: 64

約数和(自身を含む): 448846272

約数和(自身を除く): 230120402

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 61, 74, 110, 122, 185, 305, 370, 407, 610, 671, 814, 881, 1342, 1762, 2035, 2257, 3355, 4070, 4405, 4514, 6710, 8810, 9691, 11285, 19382, 22570, 24827, 32597, 48455, 49654, 53741, 65194, 96910, 107482, 124135, 162985, 248270, 268705, 325970, 358567, 537410, 591151, 717134, 1182302, 1792835, 1988417, 2955755, 3585670, 3976834, 5911510, 9942085, 19884170, 21872587, 43745174, 109362935, 218725870]

約数ペア:

[(1, 218725870), (2, 109362935), (5, 43745174), (10, 21872587), (11, 19884170), (22, 9942085), (37, 5911510), (55, 3976834), (61, 3585670), (74, 2955755), (110, 1988417), (122, 1792835), (185, 1182302), (305, 717134), (370, 591151), (407, 537410), (610, 358567), (671, 325970), (814, 268705), (881, 248270), (1342, 162985), (1762, 124135), (2035, 107482), (2257, 96910), (3355, 65194), (4070, 53741), (4405, 49654), (4514, 48455), (6710, 32597), (8810, 24827), (9691, 22570), (11285, 19382)]