66912880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{26981}}^1$

素因数の和:27025

約数の個数: 40

約数和(自身を含む): 160596864

約数和(自身を除く): 93683984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 26981, 53962, 107924, 134905, 215848, 269810, 431696, 539620, 836411, 1079240, 1672822, 2158480, 3345644, 4182055, 6691288, 8364110, 13382576, 16728220, 33456440, 66912880]

約数ペア:

[(1, 66912880), (2, 33456440), (4, 16728220), (5, 13382576), (8, 8364110), (10, 6691288), (16, 4182055), (20, 3345644), (31, 2158480), (40, 1672822), (62, 1079240), (80, 836411), (124, 539620), (155, 431696), (248, 269810), (310, 215848), (496, 134905), (620, 107924), (1240, 53962), (2480, 26981)]