18177460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{827}}^1$

素因数の和:1000

約数の個数: 48

約数和(自身を含む): 43956864

約数和(自身を除く): 25779404

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 827, 1099, 1570, 1654, 2198, 3140, 3308, 4135, 4396, 5495, 5789, 8270, 10990, 11578, 16540, 21980, 23156, 28945, 57890, 115780, 129839, 259678, 519356, 649195, 908873, 1298390, 1817746, 2596780, 3635492, 4544365, 9088730, 18177460]

約数ペア:

[(1, 18177460), (2, 9088730), (4, 4544365), (5, 3635492), (7, 2596780), (10, 1817746), (14, 1298390), (20, 908873), (28, 649195), (35, 519356), (70, 259678), (140, 129839), (157, 115780), (314, 57890), (628, 28945), (785, 23156), (827, 21980), (1099, 16540), (1570, 11578), (1654, 10990), (2198, 8270), (3140, 5789), (3308, 5495), (4135, 4396)]