20818860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{467}}^1\times {\mathrm{743}}^1$

素因数の和:1222

約数の個数: 48

約数和(自身を含む): 58496256

約数和(自身を除く): 37677396

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 467, 743, 934, 1401, 1486, 1868, 2229, 2335, 2802, 2972, 3715, 4458, 4670, 5604, 7005, 7430, 8916, 9340, 11145, 14010, 14860, 22290, 28020, 44580, 346981, 693962, 1040943, 1387924, 1734905, 2081886, 3469810, 4163772, 5204715, 6939620, 10409430, 20818860]

約数ペア:

[(1, 20818860), (2, 10409430), (3, 6939620), (4, 5204715), (5, 4163772), (6, 3469810), (10, 2081886), (12, 1734905), (15, 1387924), (20, 1040943), (30, 693962), (60, 346981), (467, 44580), (743, 28020), (934, 22290), (1401, 14860), (1486, 14010), (1868, 11145), (2229, 9340), (2335, 8916), (2802, 7430), (2972, 7005), (3715, 5604), (4458, 4670)]