19138160

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7717}}^1$

素因数の和:7761

約数の個数: 40

約数和(自身を含む): 45937536

約数和(自身を除く): 26799376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 7717, 15434, 30868, 38585, 61736, 77170, 123472, 154340, 239227, 308680, 478454, 617360, 956908, 1196135, 1913816, 2392270, 3827632, 4784540, 9569080, 19138160]

約数ペア:

[(1, 19138160), (2, 9569080), (4, 4784540), (5, 3827632), (8, 2392270), (10, 1913816), (16, 1196135), (20, 956908), (31, 617360), (40, 478454), (62, 308680), (80, 239227), (124, 154340), (155, 123472), (248, 77170), (310, 61736), (496, 38585), (620, 30868), (1240, 15434), (2480, 7717)]