18169900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:379

約数の個数: 72

約数和(自身を含む): 45684576

約数和(自身を除く): 27514676

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 101, 140, 175, 202, 257, 350, 404, 505, 514, 700, 707, 1010, 1028, 1285, 1414, 1799, 2020, 2525, 2570, 2828, 3535, 3598, 5050, 5140, 6425, 7070, 7196, 8995, 10100, 12850, 14140, 17675, 17990, 25700, 25957, 35350, 35980, 44975, 51914, 70700, 89950, 103828, 129785, 179900, 181699, 259570, 363398, 519140, 648925, 726796, 908495, 1297850, 1816990, 2595700, 3633980, 4542475, 9084950, 18169900]

約数ペア:

[(1, 18169900), (2, 9084950), (4, 4542475), (5, 3633980), (7, 2595700), (10, 1816990), (14, 1297850), (20, 908495), (25, 726796), (28, 648925), (35, 519140), (50, 363398), (70, 259570), (100, 181699), (101, 179900), (140, 129785), (175, 103828), (202, 89950), (257, 70700), (350, 51914), (404, 44975), (505, 35980), (514, 35350), (700, 25957), (707, 25700), (1010, 17990), (1028, 17675), (1285, 14140), (1414, 12850), (1799, 10100), (2020, 8995), (2525, 7196), (2570, 7070), (2828, 6425), (3535, 5140), (3598, 5050)]