403750220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{317}}^1\times {\mathrm{1481}}^1$

素因数の和:1850

約数の個数: 48

約数和(自身を含む): 870918048

約数和(自身を除く): 467167828

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 317, 430, 634, 860, 1268, 1481, 1585, 2962, 3170, 5924, 6340, 7405, 13631, 14810, 27262, 29620, 54524, 63683, 68155, 127366, 136310, 254732, 272620, 318415, 469477, 636830, 938954, 1273660, 1877908, 2347385, 4694770, 9389540, 20187511, 40375022, 80750044, 100937555, 201875110, 403750220]

約数ペア:

[(1, 403750220), (2, 201875110), (4, 100937555), (5, 80750044), (10, 40375022), (20, 20187511), (43, 9389540), (86, 4694770), (172, 2347385), (215, 1877908), (317, 1273660), (430, 938954), (634, 636830), (860, 469477), (1268, 318415), (1481, 272620), (1585, 254732), (2962, 136310), (3170, 127366), (5924, 68155), (6340, 63683), (7405, 54524), (13631, 29620), (14810, 27262)]