81427770

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{12743}}^1$

素因数の和:12827

約数の個数: 48

約数和(自身を含む): 214710912

約数和(自身を除く): 133283142

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 71, 90, 142, 213, 355, 426, 639, 710, 1065, 1278, 2130, 3195, 6390, 12743, 25486, 38229, 63715, 76458, 114687, 127430, 191145, 229374, 382290, 573435, 904753, 1146870, 1809506, 2714259, 4523765, 5428518, 8142777, 9047530, 13571295, 16285554, 27142590, 40713885, 81427770]

約数ペア:

[(1, 81427770), (2, 40713885), (3, 27142590), (5, 16285554), (6, 13571295), (9, 9047530), (10, 8142777), (15, 5428518), (18, 4523765), (30, 2714259), (45, 1809506), (71, 1146870), (90, 904753), (142, 573435), (213, 382290), (355, 229374), (426, 191145), (639, 127430), (710, 114687), (1065, 76458), (1278, 63715), (2130, 38229), (3195, 25486), (6390, 12743)]