78405660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4229}}^1$

素因数の和:4347

約数の個数: 72

約数和(自身を含む): 240196320

約数和(自身を除く): 161790660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 103, 180, 206, 309, 412, 515, 618, 927, 1030, 1236, 1545, 1854, 2060, 3090, 3708, 4229, 4635, 6180, 8458, 9270, 12687, 16916, 18540, 21145, 25374, 38061, 42290, 50748, 63435, 76122, 84580, 126870, 152244, 190305, 253740, 380610, 435587, 761220, 871174, 1306761, 1742348, 2177935, 2613522, 3920283, 4355870, 5227044, 6533805, 7840566, 8711740, 13067610, 15681132, 19601415, 26135220, 39202830, 78405660]

約数ペア:

[(1, 78405660), (2, 39202830), (3, 26135220), (4, 19601415), (5, 15681132), (6, 13067610), (9, 8711740), (10, 7840566), (12, 6533805), (15, 5227044), (18, 4355870), (20, 3920283), (30, 2613522), (36, 2177935), (45, 1742348), (60, 1306761), (90, 871174), (103, 761220), (180, 435587), (206, 380610), (309, 253740), (412, 190305), (515, 152244), (618, 126870), (927, 84580), (1030, 76122), (1236, 63435), (1545, 50748), (1854, 42290), (2060, 38061), (3090, 25374), (3708, 21145), (4229, 18540), (4635, 16916), (6180, 12687), (8458, 9270)]