648251984

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{439}}^1\times {\mathrm{2251}}^1$

素因数の和:2739

約数の個数: 40

約数和(自身を含む): 1290125760

約数和(自身を除く): 641873776

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 439, 656, 878, 1756, 2251, 3512, 4502, 7024, 9004, 17999, 18008, 35998, 36016, 71996, 92291, 143992, 184582, 287984, 369164, 738328, 988189, 1476656, 1976378, 3952756, 7905512, 15811024, 40515749, 81031498, 162062996, 324125992, 648251984]

約数ペア:

[(1, 648251984), (2, 324125992), (4, 162062996), (8, 81031498), (16, 40515749), (41, 15811024), (82, 7905512), (164, 3952756), (328, 1976378), (439, 1476656), (656, 988189), (878, 738328), (1756, 369164), (2251, 287984), (3512, 184582), (4502, 143992), (7024, 92291), (9004, 71996), (17999, 36016), (18008, 35998)]