19952560

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{863}}^1$

素因数の和:910

約数の個数: 60

約数和(自身を含む): 49336128

約数和(自身を除く): 29383568

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 289, 340, 578, 680, 863, 1156, 1360, 1445, 1726, 2312, 2890, 3452, 4315, 4624, 5780, 6904, 8630, 11560, 13808, 14671, 17260, 23120, 29342, 34520, 58684, 69040, 73355, 117368, 146710, 234736, 249407, 293420, 498814, 586840, 997628, 1173680, 1247035, 1995256, 2494070, 3990512, 4988140, 9976280, 19952560]

約数ペア:

[(1, 19952560), (2, 9976280), (4, 4988140), (5, 3990512), (8, 2494070), (10, 1995256), (16, 1247035), (17, 1173680), (20, 997628), (34, 586840), (40, 498814), (68, 293420), (80, 249407), (85, 234736), (136, 146710), (170, 117368), (272, 73355), (289, 69040), (340, 58684), (578, 34520), (680, 29342), (863, 23120), (1156, 17260), (1360, 14671), (1445, 13808), (1726, 11560), (2312, 8630), (2890, 6904), (3452, 5780), (4315, 4624)]