215981800

素因数分解:

$2^3\times 5^2\times {\mathrm{883}}^1\times {\mathrm{1223}}^1$

素因数の和:2122

約数の個数: 48

約数和(自身を含む): 503137440

約数和(自身を除く): 287155640

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 883, 1223, 1766, 2446, 3532, 4415, 4892, 6115, 7064, 8830, 9784, 12230, 17660, 22075, 24460, 30575, 35320, 44150, 48920, 61150, 88300, 122300, 176600, 244600, 1079909, 2159818, 4319636, 5399545, 8639272, 10799090, 21598180, 26997725, 43196360, 53995450, 107990900, 215981800]

約数ペア:

[(1, 215981800), (2, 107990900), (4, 53995450), (5, 43196360), (8, 26997725), (10, 21598180), (20, 10799090), (25, 8639272), (40, 5399545), (50, 4319636), (100, 2159818), (200, 1079909), (883, 244600), (1223, 176600), (1766, 122300), (2446, 88300), (3532, 61150), (4415, 48920), (4892, 44150), (6115, 35320), (7064, 30575), (8830, 24460), (9784, 22075), (12230, 17660)]