127980860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{3557}}^1$

素因数の和:3830

約数の個数: 48

約数和(自身を含む): 308435904

約数和(自身を除く): 180455044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 257, 514, 1028, 1285, 1799, 2570, 3557, 3598, 5140, 7114, 7196, 8995, 14228, 17785, 17990, 24899, 35570, 35980, 49798, 71140, 99596, 124495, 248990, 497980, 914149, 1828298, 3656596, 4570745, 6399043, 9141490, 12798086, 18282980, 25596172, 31995215, 63990430, 127980860]

約数ペア:

[(1, 127980860), (2, 63990430), (4, 31995215), (5, 25596172), (7, 18282980), (10, 12798086), (14, 9141490), (20, 6399043), (28, 4570745), (35, 3656596), (70, 1828298), (140, 914149), (257, 497980), (514, 248990), (1028, 124495), (1285, 99596), (1799, 71140), (2570, 49798), (3557, 35980), (3598, 35570), (5140, 24899), (7114, 17990), (7196, 17785), (8995, 14228)]