20430705

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{829}}^1$

素因数の和:921

約数の個数: 32

約数和(自身を含む): 34421760

約数和(自身を除く): 13991055

約数列:

[1, 3, 5, 15, 31, 53, 93, 155, 159, 265, 465, 795, 829, 1643, 2487, 4145, 4929, 8215, 12435, 24645, 25699, 43937, 77097, 128495, 131811, 219685, 385485, 659055, 1362047, 4086141, 6810235, 20430705]

約数ペア:

[(1, 20430705), (3, 6810235), (5, 4086141), (15, 1362047), (31, 659055), (53, 385485), (93, 219685), (155, 131811), (159, 128495), (265, 77097), (465, 43937), (795, 25699), (829, 24645), (1643, 12435), (2487, 8215), (4145, 4929)]