66750440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53831}}^1$

素因数の和:53873

約数の個数: 32

約数和(自身を含む): 155036160

約数和(自身を除く): 88285720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 53831, 107662, 215324, 269155, 430648, 538310, 1076620, 1668761, 2153240, 3337522, 6675044, 8343805, 13350088, 16687610, 33375220, 66750440]

約数ペア:

[(1, 66750440), (2, 33375220), (4, 16687610), (5, 13350088), (8, 8343805), (10, 6675044), (20, 3337522), (31, 2153240), (40, 1668761), (62, 1076620), (124, 538310), (155, 430648), (248, 269155), (310, 215324), (620, 107662), (1240, 53831)]