261134080

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6581}}^1$

素因数の和:6633

約数の個数: 72

約数和(自身を含む): 645773184

約数和(自身を除く): 384639104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 6581, 7936, 9920, 13162, 19840, 26324, 32905, 39680, 52648, 65810, 105296, 131620, 204011, 210592, 263240, 408022, 421184, 526480, 816044, 842368, 1020055, 1052960, 1632088, 1684736, 2040110, 2105920, 3264176, 4080220, 4211840, 6528352, 8160440, 8423680, 13056704, 16320880, 26113408, 32641760, 52226816, 65283520, 130567040, 261134080]

約数ペア:

[(1, 261134080), (2, 130567040), (4, 65283520), (5, 52226816), (8, 32641760), (10, 26113408), (16, 16320880), (20, 13056704), (31, 8423680), (32, 8160440), (40, 6528352), (62, 4211840), (64, 4080220), (80, 3264176), (124, 2105920), (128, 2040110), (155, 1684736), (160, 1632088), (248, 1052960), (256, 1020055), (310, 842368), (320, 816044), (496, 526480), (620, 421184), (640, 408022), (992, 263240), (1240, 210592), (1280, 204011), (1984, 131620), (2480, 105296), (3968, 65810), (4960, 52648), (6581, 39680), (7936, 32905), (9920, 26324), (13162, 19840)]