90121280

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{6869}}^1$

素因数の和:6927

約数の個数: 56

約数和(自身を含む): 219867480

約数和(自身を除く): 129746200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 160, 164, 205, 320, 328, 410, 656, 820, 1312, 1640, 2624, 3280, 6560, 6869, 13120, 13738, 27476, 34345, 54952, 68690, 109904, 137380, 219808, 274760, 281629, 439616, 549520, 563258, 1099040, 1126516, 1408145, 2198080, 2253032, 2816290, 4506064, 5632580, 9012128, 11265160, 18024256, 22530320, 45060640, 90121280]

約数ペア:

[(1, 90121280), (2, 45060640), (4, 22530320), (5, 18024256), (8, 11265160), (10, 9012128), (16, 5632580), (20, 4506064), (32, 2816290), (40, 2253032), (41, 2198080), (64, 1408145), (80, 1126516), (82, 1099040), (160, 563258), (164, 549520), (205, 439616), (320, 281629), (328, 274760), (410, 219808), (656, 137380), (820, 109904), (1312, 68690), (1640, 54952), (2624, 34345), (3280, 27476), (6560, 13738), (6869, 13120)]