16802020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{491}}^1$

素因数の和:588

約数の個数: 48

約数和(自身を含む): 37195200

約数和(自身を除く): 20393180

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 59, 116, 118, 145, 236, 290, 295, 491, 580, 590, 982, 1180, 1711, 1964, 2455, 3422, 4910, 6844, 8555, 9820, 14239, 17110, 28478, 28969, 34220, 56956, 57938, 71195, 115876, 142390, 144845, 284780, 289690, 579380, 840101, 1680202, 3360404, 4200505, 8401010, 16802020]

約数ペア:

[(1, 16802020), (2, 8401010), (4, 4200505), (5, 3360404), (10, 1680202), (20, 840101), (29, 579380), (58, 289690), (59, 284780), (116, 144845), (118, 142390), (145, 115876), (236, 71195), (290, 57938), (295, 56956), (491, 34220), (580, 28969), (590, 28478), (982, 17110), (1180, 14239), (1711, 9820), (1964, 8555), (2455, 6844), (3422, 4910)]