4491500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{691}}^1$

素因数の和:723

約数の個数: 48

約数和(自身を含む): 10579296

約数和(自身を除く): 6087796

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 691, 1300, 1382, 1625, 2764, 3250, 3455, 6500, 6910, 8983, 13820, 17275, 17966, 34550, 35932, 44915, 69100, 86375, 89830, 172750, 179660, 224575, 345500, 449150, 898300, 1122875, 2245750, 4491500]

約数ペア:

[(1, 4491500), (2, 2245750), (4, 1122875), (5, 898300), (10, 449150), (13, 345500), (20, 224575), (25, 179660), (26, 172750), (50, 89830), (52, 86375), (65, 69100), (100, 44915), (125, 35932), (130, 34550), (250, 17966), (260, 17275), (325, 13820), (500, 8983), (650, 6910), (691, 6500), (1300, 3455), (1382, 3250), (1625, 2764)]