87155920

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{12241}}^1$

素因数の和:12343

約数の個数: 40

約数和(自身を含む): 204931080

約数和(自身を除く): 117775160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 12241, 24482, 48964, 61205, 97928, 122410, 195856, 244820, 489640, 979280, 1089449, 2178898, 4357796, 5447245, 8715592, 10894490, 17431184, 21788980, 43577960, 87155920]

約数ペア:

[(1, 87155920), (2, 43577960), (4, 21788980), (5, 17431184), (8, 10894490), (10, 8715592), (16, 5447245), (20, 4357796), (40, 2178898), (80, 1089449), (89, 979280), (178, 489640), (356, 244820), (445, 195856), (712, 122410), (890, 97928), (1424, 61205), (1780, 48964), (3560, 24482), (7120, 12241)]