99621520

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{17539}}^1$

素因数の和:17623

約数の個数: 40

約数和(自身を含む): 234895680

約数和(自身を除く): 135274160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 17539, 35078, 70156, 87695, 140312, 175390, 280624, 350780, 701560, 1245269, 1403120, 2490538, 4981076, 6226345, 9962152, 12452690, 19924304, 24905380, 49810760, 99621520]

約数ペア:

[(1, 99621520), (2, 49810760), (4, 24905380), (5, 19924304), (8, 12452690), (10, 9962152), (16, 6226345), (20, 4981076), (40, 2490538), (71, 1403120), (80, 1245269), (142, 701560), (284, 350780), (355, 280624), (568, 175390), (710, 140312), (1136, 87695), (1420, 70156), (2840, 35078), (5680, 17539)]