18991307110

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{467651}}^1$

素因数の和:467820

約数の個数: 32

約数和(自身を含む): 35556516864

約数和(自身を除く): 16565209754

約数列:

[1, 2, 5, 10, 31, 62, 131, 155, 262, 310, 655, 1310, 4061, 8122, 20305, 40610, 467651, 935302, 2338255, 4676510, 14497181, 28994362, 61262281, 72485905, 122524562, 144971810, 306311405, 612622810, 1899130711, 3798261422, 9495653555, 18991307110]

約数ペア:

[(1, 18991307110), (2, 9495653555), (5, 3798261422), (10, 1899130711), (31, 612622810), (62, 306311405), (131, 144971810), (155, 122524562), (262, 72485905), (310, 61262281), (655, 28994362), (1310, 14497181), (4061, 4676510), (8122, 2338255), (20305, 935302), (40610, 467651)]