31431915

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:281

約数の個数: 64

約数和(自身を含む): 59719680

約数和(自身を除く): 28287765

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 53, 69, 115, 135, 159, 191, 207, 265, 345, 477, 573, 621, 795, 955, 1035, 1219, 1431, 1719, 2385, 2865, 3105, 3657, 4393, 5157, 6095, 7155, 8595, 10123, 10971, 13179, 18285, 21965, 25785, 30369, 32913, 39537, 50615, 54855, 65895, 91107, 118611, 151845, 164565, 197685, 232829, 273321, 455535, 593055, 698487, 1164145, 1366605, 2095461, 3492435, 6286383, 10477305, 31431915]

約数ペア:

[(1, 31431915), (3, 10477305), (5, 6286383), (9, 3492435), (15, 2095461), (23, 1366605), (27, 1164145), (45, 698487), (53, 593055), (69, 455535), (115, 273321), (135, 232829), (159, 197685), (191, 164565), (207, 151845), (265, 118611), (345, 91107), (477, 65895), (573, 54855), (621, 50615), (795, 39537), (955, 32913), (1035, 30369), (1219, 25785), (1431, 21965), (1719, 18285), (2385, 13179), (2865, 10971), (3105, 10123), (3657, 8595), (4393, 7155), (5157, 6095)]