858777580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{77929}}^1$

素因数の和:77986

約数の個数: 48

約数和(自身を含む): 1963836000

約数和(自身を除く): 1105058420

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, 77929, 155858, 311716, 389645, 779290, 1480651, 1558580, 2259941, 2961302, 4519882, 5922604, 7403255, 9039764, 11299705, 14806510, 22599410, 29613020, 42938879, 45198820, 85877758, 171755516, 214694395, 429388790, 858777580]

約数ペア:

[(1, 858777580), (2, 429388790), (4, 214694395), (5, 171755516), (10, 85877758), (19, 45198820), (20, 42938879), (29, 29613020), (38, 22599410), (58, 14806510), (76, 11299705), (95, 9039764), (116, 7403255), (145, 5922604), (190, 4519882), (290, 2961302), (380, 2259941), (551, 1558580), (580, 1480651), (1102, 779290), (2204, 389645), (2755, 311716), (5510, 155858), (11020, 77929)]