23890905

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{563}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 44343936

約数和(自身を除く): 20453031

約数列:

[1, 3, 5, 9, 15, 23, 41, 45, 69, 115, 123, 205, 207, 345, 369, 563, 615, 943, 1035, 1689, 1845, 2815, 2829, 4715, 5067, 8445, 8487, 12949, 14145, 23083, 25335, 38847, 42435, 64745, 69249, 115415, 116541, 194235, 207747, 346245, 530909, 582705, 1038735, 1592727, 2654545, 4778181, 7963635, 23890905]

約数ペア:

[(1, 23890905), (3, 7963635), (5, 4778181), (9, 2654545), (15, 1592727), (23, 1038735), (41, 582705), (45, 530909), (69, 346245), (115, 207747), (123, 194235), (205, 116541), (207, 115415), (345, 69249), (369, 64745), (563, 42435), (615, 38847), (943, 25335), (1035, 23083), (1689, 14145), (1845, 12949), (2815, 8487), (2829, 8445), (4715, 5067)]