138787490

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{9173}}^1$

素因数の和:9286

約数の個数: 32

約数和(自身を含む): 267513840

約数和(自身を除く): 128726350

約数列:

[1, 2, 5, 10, 17, 34, 85, 89, 170, 178, 445, 890, 1513, 3026, 7565, 9173, 15130, 18346, 45865, 91730, 155941, 311882, 779705, 816397, 1559410, 1632794, 4081985, 8163970, 13878749, 27757498, 69393745, 138787490]

約数ペア:

[(1, 138787490), (2, 69393745), (5, 27757498), (10, 13878749), (17, 8163970), (34, 4081985), (85, 1632794), (89, 1559410), (170, 816397), (178, 779705), (445, 311882), (890, 155941), (1513, 91730), (3026, 45865), (7565, 18346), (9173, 15130)]