257661840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{15121}}^1$

素因数の和:15208

約数の個数: 80

約数和(自身を含む): 810055296

約数和(自身を除く): 552393456

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 71, 80, 120, 142, 213, 240, 284, 355, 426, 568, 710, 852, 1065, 1136, 1420, 1704, 2130, 2840, 3408, 4260, 5680, 8520, 15121, 17040, 30242, 45363, 60484, 75605, 90726, 120968, 151210, 181452, 226815, 241936, 302420, 362904, 453630, 604840, 725808, 907260, 1073591, 1209680, 1814520, 2147182, 3220773, 3629040, 4294364, 5367955, 6441546, 8588728, 10735910, 12883092, 16103865, 17177456, 21471820, 25766184, 32207730, 42943640, 51532368, 64415460, 85887280, 128830920, 257661840]

約数ペア:

[(1, 257661840), (2, 128830920), (3, 85887280), (4, 64415460), (5, 51532368), (6, 42943640), (8, 32207730), (10, 25766184), (12, 21471820), (15, 17177456), (16, 16103865), (20, 12883092), (24, 10735910), (30, 8588728), (40, 6441546), (48, 5367955), (60, 4294364), (71, 3629040), (80, 3220773), (120, 2147182), (142, 1814520), (213, 1209680), (240, 1073591), (284, 907260), (355, 725808), (426, 604840), (568, 453630), (710, 362904), (852, 302420), (1065, 241936), (1136, 226815), (1420, 181452), (1704, 151210), (2130, 120968), (2840, 90726), (3408, 75605), (4260, 60484), (5680, 45363), (8520, 30242), (15121, 17040)]