1545740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 3791424

約数和(自身を除く): 2245684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 181, 244, 305, 362, 427, 610, 724, 854, 905, 1220, 1267, 1708, 1810, 2135, 2534, 3620, 4270, 5068, 6335, 8540, 11041, 12670, 22082, 25340, 44164, 55205, 77287, 110410, 154574, 220820, 309148, 386435, 772870, 1545740]

約数ペア:

[(1, 1545740), (2, 772870), (4, 386435), (5, 309148), (7, 220820), (10, 154574), (14, 110410), (20, 77287), (28, 55205), (35, 44164), (61, 25340), (70, 22082), (122, 12670), (140, 11041), (181, 8540), (244, 6335), (305, 5068), (362, 4270), (427, 3620), (610, 2534), (724, 2135), (854, 1810), (905, 1708), (1220, 1267)]