9780781620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8579633}}^1$

素因数の和:8579664

約数の個数: 48

約数和(自身を含む): 28827570240

約数和(自身を除く): 19046788620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 8579633, 17159266, 25738899, 34318532, 42898165, 51477798, 85796330, 102955596, 128694495, 163013027, 171592660, 257388990, 326026054, 489039081, 514777980, 652052108, 815065135, 978078162, 1630130270, 1956156324, 2445195405, 3260260540, 4890390810, 9780781620]

約数ペア:

[(1, 9780781620), (2, 4890390810), (3, 3260260540), (4, 2445195405), (5, 1956156324), (6, 1630130270), (10, 978078162), (12, 815065135), (15, 652052108), (19, 514777980), (20, 489039081), (30, 326026054), (38, 257388990), (57, 171592660), (60, 163013027), (76, 128694495), (95, 102955596), (114, 85796330), (190, 51477798), (228, 42898165), (285, 34318532), (380, 25738899), (570, 17159266), (1140, 8579633)]