20451315

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{983}}^1$

素因数の和:1083

約数の個数: 32

約数和(自身を含む): 34951680

約数和(自身を除く): 14500365

約数列:

[1, 3, 5, 15, 19, 57, 73, 95, 219, 285, 365, 983, 1095, 1387, 2949, 4161, 4915, 6935, 14745, 18677, 20805, 56031, 71759, 93385, 215277, 280155, 358795, 1076385, 1363421, 4090263, 6817105, 20451315]

約数ペア:

[(1, 20451315), (3, 6817105), (5, 4090263), (15, 1363421), (19, 1076385), (57, 358795), (73, 280155), (95, 215277), (219, 93385), (285, 71759), (365, 56031), (983, 20805), (1095, 18677), (1387, 14745), (2949, 6935), (4161, 4915)]