1291216940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{457}}^1\times {\mathrm{10867}}^1$

素因数の和:11346

約数の個数: 48

約数和(自身を含む): 2926795872

約数和(自身を除く): 1635578932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 457, 914, 1828, 2285, 4570, 5941, 9140, 10867, 11882, 21734, 23764, 29705, 43468, 54335, 59410, 108670, 118820, 141271, 217340, 282542, 565084, 706355, 1412710, 2825420, 4966219, 9932438, 19864876, 24831095, 49662190, 64560847, 99324380, 129121694, 258243388, 322804235, 645608470, 1291216940]

約数ペア:

[(1, 1291216940), (2, 645608470), (4, 322804235), (5, 258243388), (10, 129121694), (13, 99324380), (20, 64560847), (26, 49662190), (52, 24831095), (65, 19864876), (130, 9932438), (260, 4966219), (457, 2825420), (914, 1412710), (1828, 706355), (2285, 565084), (4570, 282542), (5941, 217340), (9140, 141271), (10867, 118820), (11882, 108670), (21734, 59410), (23764, 54335), (29705, 43468)]