66278840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2357}}^1$

素因数の和:2424

約数の個数: 64

約数和(自身を含む): 161287200

約数和(自身を除く): 95008360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 37, 38, 40, 74, 76, 95, 148, 152, 185, 190, 296, 370, 380, 703, 740, 760, 1406, 1480, 2357, 2812, 3515, 4714, 5624, 7030, 9428, 11785, 14060, 18856, 23570, 28120, 44783, 47140, 87209, 89566, 94280, 174418, 179132, 223915, 348836, 358264, 436045, 447830, 697672, 872090, 895660, 1656971, 1744180, 1791320, 3313942, 3488360, 6627884, 8284855, 13255768, 16569710, 33139420, 66278840]

約数ペア:

[(1, 66278840), (2, 33139420), (4, 16569710), (5, 13255768), (8, 8284855), (10, 6627884), (19, 3488360), (20, 3313942), (37, 1791320), (38, 1744180), (40, 1656971), (74, 895660), (76, 872090), (95, 697672), (148, 447830), (152, 436045), (185, 358264), (190, 348836), (296, 223915), (370, 179132), (380, 174418), (703, 94280), (740, 89566), (760, 87209), (1406, 47140), (1480, 44783), (2357, 28120), (2812, 23570), (3515, 18856), (4714, 14060), (5624, 11785), (7030, 9428)]