18301670

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{173}}^1$

素因数の和:400

約数の個数: 32

約数和(自身を含む): 33825600

約数和(自身を除く): 15523930

約数列:

[1, 2, 5, 10, 71, 142, 149, 173, 298, 346, 355, 710, 745, 865, 1490, 1730, 10579, 12283, 21158, 24566, 25777, 51554, 52895, 61415, 105790, 122830, 128885, 257770, 1830167, 3660334, 9150835, 18301670]

約数ペア:

[(1, 18301670), (2, 9150835), (5, 3660334), (10, 1830167), (71, 257770), (142, 128885), (149, 122830), (173, 105790), (298, 61415), (346, 52895), (355, 51554), (710, 25777), (745, 24566), (865, 21158), (1490, 12283), (1730, 10579)]