20901510

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11059}}^1$

素因数の和:11082

約数の個数: 64

約数和(自身を含む): 63705600

約数和(自身を除く): 42804090

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 11059, 22118, 33177, 55295, 66354, 77413, 99531, 110590, 154826, 165885, 199062, 232239, 298593, 331770, 387065, 464478, 497655, 597186, 696717, 774130, 995310, 1161195, 1393434, 1492965, 2090151, 2322390, 2985930, 3483585, 4180302, 6967170, 10450755, 20901510]

約数ペア:

[(1, 20901510), (2, 10450755), (3, 6967170), (5, 4180302), (6, 3483585), (7, 2985930), (9, 2322390), (10, 2090151), (14, 1492965), (15, 1393434), (18, 1161195), (21, 995310), (27, 774130), (30, 696717), (35, 597186), (42, 497655), (45, 464478), (54, 387065), (63, 331770), (70, 298593), (90, 232239), (105, 199062), (126, 165885), (135, 154826), (189, 110590), (210, 99531), (270, 77413), (315, 66354), (378, 55295), (630, 33177), (945, 22118), (1890, 11059)]