66980440

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{283}}^1$

素因数の和:452

約数の個数: 64

約数和(自身を含む): 155302560

約数和(自身を除く): 88322120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 97, 122, 194, 244, 283, 305, 388, 485, 488, 566, 610, 776, 970, 1132, 1220, 1415, 1940, 2264, 2440, 2830, 3880, 5660, 5917, 11320, 11834, 17263, 23668, 27451, 29585, 34526, 47336, 54902, 59170, 69052, 86315, 109804, 118340, 137255, 138104, 172630, 219608, 236680, 274510, 345260, 549020, 690520, 1098040, 1674511, 3349022, 6698044, 8372555, 13396088, 16745110, 33490220, 66980440]

約数ペア:

[(1, 66980440), (2, 33490220), (4, 16745110), (5, 13396088), (8, 8372555), (10, 6698044), (20, 3349022), (40, 1674511), (61, 1098040), (97, 690520), (122, 549020), (194, 345260), (244, 274510), (283, 236680), (305, 219608), (388, 172630), (485, 138104), (488, 137255), (566, 118340), (610, 109804), (776, 86315), (970, 69052), (1132, 59170), (1220, 54902), (1415, 47336), (1940, 34526), (2264, 29585), (2440, 27451), (2830, 23668), (3880, 17263), (5660, 11834), (5917, 11320)]