20455500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1049}}^1$

素因数の和:1084

約数の個数: 96

約数和(自身を含む): 64209600

約数和(自身を除く): 43754100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 125, 130, 150, 156, 195, 250, 260, 300, 325, 375, 390, 500, 650, 750, 780, 975, 1049, 1300, 1500, 1625, 1950, 2098, 3147, 3250, 3900, 4196, 4875, 5245, 6294, 6500, 9750, 10490, 12588, 13637, 15735, 19500, 20980, 26225, 27274, 31470, 40911, 52450, 54548, 62940, 68185, 78675, 81822, 104900, 131125, 136370, 157350, 163644, 204555, 262250, 272740, 314700, 340925, 393375, 409110, 524500, 681850, 786750, 818220, 1022775, 1363700, 1573500, 1704625, 2045550, 3409250, 4091100, 5113875, 6818500, 10227750, 20455500]

約数ペア:

[(1, 20455500), (2, 10227750), (3, 6818500), (4, 5113875), (5, 4091100), (6, 3409250), (10, 2045550), (12, 1704625), (13, 1573500), (15, 1363700), (20, 1022775), (25, 818220), (26, 786750), (30, 681850), (39, 524500), (50, 409110), (52, 393375), (60, 340925), (65, 314700), (75, 272740), (78, 262250), (100, 204555), (125, 163644), (130, 157350), (150, 136370), (156, 131125), (195, 104900), (250, 81822), (260, 78675), (300, 68185), (325, 62940), (375, 54548), (390, 52450), (500, 40911), (650, 31470), (750, 27274), (780, 26225), (975, 20980), (1049, 19500), (1300, 15735), (1500, 13637), (1625, 12588), (1950, 10490), (2098, 9750), (3147, 6500), (3250, 6294), (3900, 5245), (4196, 4875)]