31702640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20857}}^1$

素因数の和:20889

約数の個数: 40

約数和(自身を含む): 77591760

約数和(自身を除く): 45889120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 20857, 41714, 83428, 104285, 166856, 208570, 333712, 396283, 417140, 792566, 834280, 1585132, 1668560, 1981415, 3170264, 3962830, 6340528, 7925660, 15851320, 31702640]

約数ペア:

[(1, 31702640), (2, 15851320), (4, 7925660), (5, 6340528), (8, 3962830), (10, 3170264), (16, 1981415), (19, 1668560), (20, 1585132), (38, 834280), (40, 792566), (76, 417140), (80, 396283), (95, 333712), (152, 208570), (190, 166856), (304, 104285), (380, 83428), (760, 41714), (1520, 20857)]