64978790

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{1171}}^1$

素因数の和:1388

約数の個数: 32

約数和(自身を含む): 121512960

約数和(自身を除く): 56534170

約数列:

[1, 2, 5, 10, 31, 62, 155, 179, 310, 358, 895, 1171, 1790, 2342, 5549, 5855, 11098, 11710, 27745, 36301, 55490, 72602, 181505, 209609, 363010, 419218, 1048045, 2096090, 6497879, 12995758, 32489395, 64978790]

約数ペア:

[(1, 64978790), (2, 32489395), (5, 12995758), (10, 6497879), (31, 2096090), (62, 1048045), (155, 419218), (179, 363010), (310, 209609), (358, 181505), (895, 72602), (1171, 55490), (1790, 36301), (2342, 27745), (5549, 11710), (5855, 11098)]