66728120

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53813}}^1$

素因数の和:53855

約数の個数: 32

約数和(自身を含む): 154984320

約数和(自身を除く): 88256200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 53813, 107626, 215252, 269065, 430504, 538130, 1076260, 1668203, 2152520, 3336406, 6672812, 8341015, 13345624, 16682030, 33364060, 66728120]

約数ペア:

[(1, 66728120), (2, 33364060), (4, 16682030), (5, 13345624), (8, 8341015), (10, 6672812), (20, 3336406), (31, 2152520), (40, 1668203), (62, 1076260), (124, 538130), (155, 430504), (248, 269065), (310, 215252), (620, 107626), (1240, 53813)]