20442415

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:136

約数の個数: 48

約数和(自身を含む): 31122432

約数和(自身を除く): 10680017

約数列:

[1, 5, 7, 17, 35, 43, 47, 85, 119, 215, 235, 289, 301, 329, 595, 731, 799, 1445, 1505, 1645, 2021, 2023, 3655, 3995, 5117, 5593, 10105, 10115, 12427, 13583, 14147, 25585, 27965, 34357, 62135, 67915, 70735, 86989, 95081, 171785, 240499, 434945, 475405, 584069, 1202495, 2920345, 4088483, 20442415]

約数ペア:

[(1, 20442415), (5, 4088483), (7, 2920345), (17, 1202495), (35, 584069), (43, 475405), (47, 434945), (85, 240499), (119, 171785), (215, 95081), (235, 86989), (289, 70735), (301, 67915), (329, 62135), (595, 34357), (731, 27965), (799, 25585), (1445, 14147), (1505, 13583), (1645, 12427), (2021, 10115), (2023, 10105), (3655, 5593), (3995, 5117)]