28647520

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{397}}^1$

素因数の和:464

約数の個数: 96

約数和(自身を含む): 75823776

約数和(自身を除く): 47176256

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 41, 44, 55, 80, 82, 88, 110, 160, 164, 176, 205, 220, 328, 352, 397, 410, 440, 451, 656, 794, 820, 880, 902, 1312, 1588, 1640, 1760, 1804, 1985, 2255, 3176, 3280, 3608, 3970, 4367, 4510, 6352, 6560, 7216, 7940, 8734, 9020, 12704, 14432, 15880, 16277, 17468, 18040, 21835, 31760, 32554, 34936, 36080, 43670, 63520, 65108, 69872, 72160, 81385, 87340, 130216, 139744, 162770, 174680, 179047, 260432, 325540, 349360, 358094, 520864, 651080, 698720, 716188, 895235, 1302160, 1432376, 1790470, 2604320, 2864752, 3580940, 5729504, 7161880, 14323760, 28647520]

約数ペア:

[(1, 28647520), (2, 14323760), (4, 7161880), (5, 5729504), (8, 3580940), (10, 2864752), (11, 2604320), (16, 1790470), (20, 1432376), (22, 1302160), (32, 895235), (40, 716188), (41, 698720), (44, 651080), (55, 520864), (80, 358094), (82, 349360), (88, 325540), (110, 260432), (160, 179047), (164, 174680), (176, 162770), (205, 139744), (220, 130216), (328, 87340), (352, 81385), (397, 72160), (410, 69872), (440, 65108), (451, 63520), (656, 43670), (794, 36080), (820, 34936), (880, 32554), (902, 31760), (1312, 21835), (1588, 18040), (1640, 17468), (1760, 16277), (1804, 15880), (1985, 14432), (2255, 12704), (3176, 9020), (3280, 8734), (3608, 7940), (3970, 7216), (4367, 6560), (4510, 6352)]