203078980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{9887}}^1$

素因数の和:9988

約数の個数: 48

約数和(自身を含む): 465131520

約数和(自身を除く): 262052540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 1027, 1580, 2054, 4108, 5135, 9887, 10270, 19774, 20540, 39548, 49435, 98870, 128531, 197740, 257062, 514124, 642655, 781073, 1285310, 1562146, 2570620, 3124292, 3905365, 7810730, 10153949, 15621460, 20307898, 40615796, 50769745, 101539490, 203078980]

約数ペア:

[(1, 203078980), (2, 101539490), (4, 50769745), (5, 40615796), (10, 20307898), (13, 15621460), (20, 10153949), (26, 7810730), (52, 3905365), (65, 3124292), (79, 2570620), (130, 1562146), (158, 1285310), (260, 781073), (316, 642655), (395, 514124), (790, 257062), (1027, 197740), (1580, 128531), (2054, 98870), (4108, 49435), (5135, 39548), (9887, 20540), (10270, 19774)]