399243580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{36229}}^1$

素因数の和:36286

約数の個数: 48

約数和(自身を含む): 912996000

約数和(自身を除く): 513752420

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 290, 380, 551, 580, 1102, 2204, 2755, 5510, 11020, 36229, 72458, 144916, 181145, 362290, 688351, 724580, 1050641, 1376702, 2101282, 2753404, 3441755, 4202564, 5253205, 6883510, 10506410, 13767020, 19962179, 21012820, 39924358, 79848716, 99810895, 199621790, 399243580]

約数ペア:

[(1, 399243580), (2, 199621790), (4, 99810895), (5, 79848716), (10, 39924358), (19, 21012820), (20, 19962179), (29, 13767020), (38, 10506410), (58, 6883510), (76, 5253205), (95, 4202564), (116, 3441755), (145, 2753404), (190, 2101282), (290, 1376702), (380, 1050641), (551, 724580), (580, 688351), (1102, 362290), (2204, 181145), (2755, 144916), (5510, 72458), (11020, 36229)]