61662760

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{17321}}^1$

素因数の和:17421

約数の個数: 32

約数和(自身を含む): 140308200

約数和(自身を除く): 78645440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 17321, 34642, 69284, 86605, 138568, 173210, 346420, 692840, 1541569, 3083138, 6166276, 7707845, 12332552, 15415690, 30831380, 61662760]

約数ペア:

[(1, 61662760), (2, 30831380), (4, 15415690), (5, 12332552), (8, 7707845), (10, 6166276), (20, 3083138), (40, 1541569), (89, 692840), (178, 346420), (356, 173210), (445, 138568), (712, 86605), (890, 69284), (1780, 34642), (3560, 17321)]