19500560

素因数分解:

$2^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1409}}^1$

素因数の和:1595

約数の個数: 40

約数和(自身を含む): 45633240

約数和(自身を除く): 26132680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173, 346, 692, 865, 1384, 1409, 1730, 2768, 2818, 3460, 5636, 6920, 7045, 11272, 13840, 14090, 22544, 28180, 56360, 112720, 243757, 487514, 975028, 1218785, 1950056, 2437570, 3900112, 4875140, 9750280, 19500560]

約数ペア:

[(1, 19500560), (2, 9750280), (4, 4875140), (5, 3900112), (8, 2437570), (10, 1950056), (16, 1218785), (20, 975028), (40, 487514), (80, 243757), (173, 112720), (346, 56360), (692, 28180), (865, 22544), (1384, 14090), (1409, 13840), (1730, 11272), (2768, 7045), (2818, 6920), (3460, 5636)]