201025840

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{13883}}^1$

素因数の和:14077

約数の個数: 40

約数和(自身を含む): 470001168

約数和(自身を除く): 268975328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 1448, 1810, 2896, 3620, 7240, 13883, 14480, 27766, 55532, 69415, 111064, 138830, 222128, 277660, 555320, 1110640, 2512823, 5025646, 10051292, 12564115, 20102584, 25128230, 40205168, 50256460, 100512920, 201025840]

約数ペア:

[(1, 201025840), (2, 100512920), (4, 50256460), (5, 40205168), (8, 25128230), (10, 20102584), (16, 12564115), (20, 10051292), (40, 5025646), (80, 2512823), (181, 1110640), (362, 555320), (724, 277660), (905, 222128), (1448, 138830), (1810, 111064), (2896, 69415), (3620, 55532), (7240, 27766), (13883, 14480)]