20297655770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{239}}^1\times {\mathrm{7013}}^1$

素因数の和:7439

約数の個数: 64

約数和(自身を含む): 42178268160

約数和(自身を除く): 21880612390

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 173, 239, 346, 478, 865, 1195, 1211, 1673, 1730, 2390, 2422, 3346, 6055, 7013, 8365, 12110, 14026, 16730, 35065, 41347, 49091, 70130, 82694, 98182, 206735, 245455, 289429, 413470, 490910, 578858, 1213249, 1447145, 1676107, 2426498, 2894290, 3352214, 6066245, 8380535, 8492743, 11732749, 12132490, 16761070, 16985486, 23465498, 42463715, 58663745, 84927430, 117327490, 289966511, 579933022, 1449832555, 2029765577, 2899665110, 4059531154, 10148827885, 20297655770]

約数ペア:

[(1, 20297655770), (2, 10148827885), (5, 4059531154), (7, 2899665110), (10, 2029765577), (14, 1449832555), (35, 579933022), (70, 289966511), (173, 117327490), (239, 84927430), (346, 58663745), (478, 42463715), (865, 23465498), (1195, 16985486), (1211, 16761070), (1673, 12132490), (1730, 11732749), (2390, 8492743), (2422, 8380535), (3346, 6066245), (6055, 3352214), (7013, 2894290), (8365, 2426498), (12110, 1676107), (14026, 1447145), (16730, 1213249), (35065, 578858), (41347, 490910), (49091, 413470), (70130, 289429), (82694, 245455), (98182, 206735)]