20881552020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{558629}}^1$

素因数の和:558737

約数の個数: 96

約数和(自身を含む): 67571884800

約数和(自身を除く): 46690332780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 89, 105, 140, 178, 210, 267, 356, 420, 445, 534, 623, 890, 1068, 1246, 1335, 1780, 1869, 2492, 2670, 3115, 3738, 5340, 6230, 7476, 9345, 12460, 18690, 37380, 558629, 1117258, 1675887, 2234516, 2793145, 3351774, 3910403, 5586290, 6703548, 7820806, 8379435, 11172580, 11731209, 15641612, 16758870, 19552015, 23462418, 33517740, 39104030, 46924836, 49717981, 58656045, 78208060, 99435962, 117312090, 149153943, 198871924, 234624180, 248589905, 298307886, 348025867, 497179810, 596615772, 696051734, 745769715, 994359620, 1044077601, 1392103468, 1491539430, 1740129335, 2088155202, 2983078860, 3480258670, 4176310404, 5220388005, 6960517340, 10440776010, 20881552020]

約数ペア:

[(1, 20881552020), (2, 10440776010), (3, 6960517340), (4, 5220388005), (5, 4176310404), (6, 3480258670), (7, 2983078860), (10, 2088155202), (12, 1740129335), (14, 1491539430), (15, 1392103468), (20, 1044077601), (21, 994359620), (28, 745769715), (30, 696051734), (35, 596615772), (42, 497179810), (60, 348025867), (70, 298307886), (84, 248589905), (89, 234624180), (105, 198871924), (140, 149153943), (178, 117312090), (210, 99435962), (267, 78208060), (356, 58656045), (420, 49717981), (445, 46924836), (534, 39104030), (623, 33517740), (890, 23462418), (1068, 19552015), (1246, 16758870), (1335, 15641612), (1780, 11731209), (1869, 11172580), (2492, 8379435), (2670, 7820806), (3115, 6703548), (3738, 5586290), (5340, 3910403), (6230, 3351774), (7476, 2793145), (9345, 2234516), (12460, 1675887), (18690, 1117258), (37380, 558629)]