20269600

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1949}}^1$

素因数の和:1982

約数の個数: 72

約数和(自身を含む): 53316900

約数和(自身を除く): 33047300

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 130, 160, 200, 208, 260, 325, 400, 416, 520, 650, 800, 1040, 1300, 1949, 2080, 2600, 3898, 5200, 7796, 9745, 10400, 15592, 19490, 25337, 31184, 38980, 48725, 50674, 62368, 77960, 97450, 101348, 126685, 155920, 194900, 202696, 253370, 311840, 389800, 405392, 506740, 633425, 779600, 810784, 1013480, 1266850, 1559200, 2026960, 2533700, 4053920, 5067400, 10134800, 20269600]

約数ペア:

[(1, 20269600), (2, 10134800), (4, 5067400), (5, 4053920), (8, 2533700), (10, 2026960), (13, 1559200), (16, 1266850), (20, 1013480), (25, 810784), (26, 779600), (32, 633425), (40, 506740), (50, 405392), (52, 389800), (65, 311840), (80, 253370), (100, 202696), (104, 194900), (130, 155920), (160, 126685), (200, 101348), (208, 97450), (260, 77960), (325, 62368), (400, 50674), (416, 48725), (520, 38980), (650, 31184), (800, 25337), (1040, 19490), (1300, 15592), (1949, 10400), (2080, 9745), (2600, 7796), (3898, 5200)]