19785870

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1879}}^1$

素因数の和:1911

約数の個数: 80

約数和(自身を含む): 57324960

約数和(自身を除く): 37539090

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 81, 90, 117, 130, 135, 162, 195, 234, 270, 351, 390, 405, 585, 702, 810, 1053, 1170, 1755, 1879, 2106, 3510, 3758, 5265, 5637, 9395, 10530, 11274, 16911, 18790, 24427, 28185, 33822, 48854, 50733, 56370, 73281, 84555, 101466, 122135, 146562, 152199, 169110, 219843, 244270, 253665, 304398, 366405, 439686, 507330, 659529, 732810, 760995, 1099215, 1319058, 1521990, 1978587, 2198430, 3297645, 3957174, 6595290, 9892935, 19785870]

約数ペア:

[(1, 19785870), (2, 9892935), (3, 6595290), (5, 3957174), (6, 3297645), (9, 2198430), (10, 1978587), (13, 1521990), (15, 1319058), (18, 1099215), (26, 760995), (27, 732810), (30, 659529), (39, 507330), (45, 439686), (54, 366405), (65, 304398), (78, 253665), (81, 244270), (90, 219843), (117, 169110), (130, 152199), (135, 146562), (162, 122135), (195, 101466), (234, 84555), (270, 73281), (351, 56370), (390, 50733), (405, 48854), (585, 33822), (702, 28185), (810, 24427), (1053, 18790), (1170, 16911), (1755, 11274), (1879, 10530), (2106, 9395), (3510, 5637), (3758, 5265)]