18756710

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{379}}^1$

素因数の和:501

約数の個数: 48

約数和(自身を含む): 39767760

約数和(自身を除く): 21011050

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 101, 202, 245, 379, 490, 505, 707, 758, 1010, 1414, 1895, 2653, 3535, 3790, 4949, 5306, 7070, 9898, 13265, 18571, 24745, 26530, 37142, 38279, 49490, 76558, 92855, 185710, 191395, 267953, 382790, 535906, 1339765, 1875671, 2679530, 3751342, 9378355, 18756710]

約数ペア:

[(1, 18756710), (2, 9378355), (5, 3751342), (7, 2679530), (10, 1875671), (14, 1339765), (35, 535906), (49, 382790), (70, 267953), (98, 191395), (101, 185710), (202, 92855), (245, 76558), (379, 49490), (490, 38279), (505, 37142), (707, 26530), (758, 24745), (1010, 18571), (1414, 13265), (1895, 9898), (2653, 7070), (3535, 5306), (3790, 4949)]