20466215

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:152

約数の個数: 64

約数和(自身を含む): 33592320

約数和(自身を除く): 13126105

約数列:

[1, 5, 7, 11, 17, 35, 53, 55, 59, 77, 85, 119, 187, 265, 295, 371, 385, 413, 583, 595, 649, 901, 935, 1003, 1309, 1855, 2065, 2915, 3127, 3245, 4081, 4505, 4543, 5015, 6307, 6545, 7021, 9911, 11033, 15635, 20405, 21889, 22715, 31535, 34397, 35105, 49555, 53159, 55165, 69377, 77231, 109445, 171985, 240779, 265795, 346885, 372113, 386155, 584749, 1203895, 1860565, 2923745, 4093243, 20466215]

約数ペア:

[(1, 20466215), (5, 4093243), (7, 2923745), (11, 1860565), (17, 1203895), (35, 584749), (53, 386155), (55, 372113), (59, 346885), (77, 265795), (85, 240779), (119, 171985), (187, 109445), (265, 77231), (295, 69377), (371, 55165), (385, 53159), (413, 49555), (583, 35105), (595, 34397), (649, 31535), (901, 22715), (935, 21889), (1003, 20405), (1309, 15635), (1855, 11033), (2065, 9911), (2915, 7021), (3127, 6545), (3245, 6307), (4081, 5015), (4505, 4543)]