20194748

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{193}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 42108864

約数和(自身を除く): 21914116

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 101, 148, 193, 202, 259, 386, 404, 518, 707, 772, 1036, 1351, 1414, 2702, 2828, 3737, 5404, 7141, 7474, 14282, 14948, 19493, 26159, 28564, 38986, 49987, 52318, 77972, 99974, 104636, 136451, 199948, 272902, 545804, 721241, 1442482, 2884964, 5048687, 10097374, 20194748]

約数ペア:

[(1, 20194748), (2, 10097374), (4, 5048687), (7, 2884964), (14, 1442482), (28, 721241), (37, 545804), (74, 272902), (101, 199948), (148, 136451), (193, 104636), (202, 99974), (259, 77972), (386, 52318), (404, 49987), (518, 38986), (707, 28564), (772, 26159), (1036, 19493), (1351, 14948), (1414, 14282), (2702, 7474), (2828, 7141), (3737, 5404)]