1649360

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{389}}^1$

素因数の和:455

約数の個数: 40

約数和(自身を含む): 3917160

約数和(自身を除く): 2267800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 389, 424, 530, 778, 848, 1060, 1556, 1945, 2120, 3112, 3890, 4240, 6224, 7780, 15560, 20617, 31120, 41234, 82468, 103085, 164936, 206170, 329872, 412340, 824680, 1649360]

約数ペア:

[(1, 1649360), (2, 824680), (4, 412340), (5, 329872), (8, 206170), (10, 164936), (16, 103085), (20, 82468), (40, 41234), (53, 31120), (80, 20617), (106, 15560), (212, 7780), (265, 6224), (389, 4240), (424, 3890), (530, 3112), (778, 2120), (848, 1945), (1060, 1556)]