8455240

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:274

約数の個数: 64

約数和(自身を含む): 20314800

約数和(自身を除く): 11859560

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 37, 40, 58, 74, 116, 145, 148, 185, 197, 232, 290, 296, 370, 394, 580, 740, 788, 985, 1073, 1160, 1480, 1576, 1970, 2146, 3940, 4292, 5365, 5713, 7289, 7880, 8584, 10730, 11426, 14578, 21460, 22852, 28565, 29156, 36445, 42920, 45704, 57130, 58312, 72890, 114260, 145780, 211381, 228520, 291560, 422762, 845524, 1056905, 1691048, 2113810, 4227620, 8455240]

約数ペア:

[(1, 8455240), (2, 4227620), (4, 2113810), (5, 1691048), (8, 1056905), (10, 845524), (20, 422762), (29, 291560), (37, 228520), (40, 211381), (58, 145780), (74, 114260), (116, 72890), (145, 58312), (148, 57130), (185, 45704), (197, 42920), (232, 36445), (290, 29156), (296, 28565), (370, 22852), (394, 21460), (580, 14578), (740, 11426), (788, 10730), (985, 8584), (1073, 7880), (1160, 7289), (1480, 5713), (1576, 5365), (1970, 4292), (2146, 3940)]