21960800

素因数分解:

$2^5\times 5^2\times {\mathrm{97}}^1\times {\mathrm{283}}^1$

素因数の和:400

約数の個数: 72

約数和(自身を含む): 54355896

約数和(自身を除く): 32395096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 97, 100, 160, 194, 200, 283, 388, 400, 485, 566, 776, 800, 970, 1132, 1415, 1552, 1940, 2264, 2425, 2830, 3104, 3880, 4528, 4850, 5660, 7075, 7760, 9056, 9700, 11320, 14150, 15520, 19400, 22640, 27451, 28300, 38800, 45280, 54902, 56600, 77600, 109804, 113200, 137255, 219608, 226400, 274510, 439216, 549020, 686275, 878432, 1098040, 1372550, 2196080, 2745100, 4392160, 5490200, 10980400, 21960800]

約数ペア:

[(1, 21960800), (2, 10980400), (4, 5490200), (5, 4392160), (8, 2745100), (10, 2196080), (16, 1372550), (20, 1098040), (25, 878432), (32, 686275), (40, 549020), (50, 439216), (80, 274510), (97, 226400), (100, 219608), (160, 137255), (194, 113200), (200, 109804), (283, 77600), (388, 56600), (400, 54902), (485, 45280), (566, 38800), (776, 28300), (800, 27451), (970, 22640), (1132, 19400), (1415, 15520), (1552, 14150), (1940, 11320), (2264, 9700), (2425, 9056), (2830, 7760), (3104, 7075), (3880, 5660), (4528, 4850)]