20577095

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1$

素因数の和:168

約数の個数: 64

約数和(自身を含む): 33868800

約数和(自身を除く): 13291705

約数列:

[1, 5, 7, 11, 19, 29, 35, 55, 77, 95, 97, 133, 145, 203, 209, 319, 385, 485, 551, 665, 679, 1015, 1045, 1067, 1463, 1595, 1843, 2233, 2755, 2813, 3395, 3857, 5335, 6061, 7315, 7469, 9215, 11165, 12901, 14065, 19285, 19691, 20273, 30305, 30943, 37345, 42427, 53447, 64505, 98455, 101365, 141911, 154715, 212135, 216601, 267235, 374129, 587917, 709555, 1083005, 1870645, 2939585, 4115419, 20577095]

約数ペア:

[(1, 20577095), (5, 4115419), (7, 2939585), (11, 1870645), (19, 1083005), (29, 709555), (35, 587917), (55, 374129), (77, 267235), (95, 216601), (97, 212135), (133, 154715), (145, 141911), (203, 101365), (209, 98455), (319, 64505), (385, 53447), (485, 42427), (551, 37345), (665, 30943), (679, 30305), (1015, 20273), (1045, 19691), (1067, 19285), (1463, 14065), (1595, 12901), (1843, 11165), (2233, 9215), (2755, 7469), (2813, 7315), (3395, 6061), (3857, 5335)]