20643490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{3733}}^1$

素因数の和:3826

約数の個数: 32

約数和(自身を含む): 43015680

約数和(自身を除く): 22372190

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 79, 158, 395, 553, 790, 1106, 2765, 3733, 5530, 7466, 18665, 26131, 37330, 52262, 130655, 261310, 294907, 589814, 1474535, 2064349, 2949070, 4128698, 10321745, 20643490]

約数ペア:

[(1, 20643490), (2, 10321745), (5, 4128698), (7, 2949070), (10, 2064349), (14, 1474535), (35, 589814), (70, 294907), (79, 261310), (158, 130655), (395, 52262), (553, 37330), (790, 26131), (1106, 18665), (2765, 7466), (3733, 5530)]