18423890

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:386

約数の個数: 32

約数和(自身を含む): 34007040

約数和(自身を除く): 15583150

約数列:

[1, 2, 5, 10, 89, 127, 163, 178, 254, 326, 445, 635, 815, 890, 1270, 1630, 11303, 14507, 20701, 22606, 29014, 41402, 56515, 72535, 103505, 113030, 145070, 207010, 1842389, 3684778, 9211945, 18423890]

約数ペア:

[(1, 18423890), (2, 9211945), (5, 3684778), (10, 1842389), (89, 207010), (127, 145070), (163, 113030), (178, 103505), (254, 72535), (326, 56515), (445, 41402), (635, 29014), (815, 22606), (890, 20701), (1270, 14507), (1630, 11303)]