20830530

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{353}}^1$

素因数の和:651

約数の個数: 64

約数和(自身を含む): 57500928

約数和(自身を除く): 36670398

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 281, 353, 562, 706, 843, 1059, 1405, 1686, 1765, 1967, 2118, 2471, 2810, 3530, 3934, 4215, 4942, 5295, 5901, 7413, 8430, 9835, 10590, 11802, 12355, 14826, 19670, 24710, 29505, 37065, 59010, 74130, 99193, 198386, 297579, 495965, 595158, 694351, 991930, 1388702, 1487895, 2083053, 2975790, 3471755, 4166106, 6943510, 10415265, 20830530]

約数ペア:

[(1, 20830530), (2, 10415265), (3, 6943510), (5, 4166106), (6, 3471755), (7, 2975790), (10, 2083053), (14, 1487895), (15, 1388702), (21, 991930), (30, 694351), (35, 595158), (42, 495965), (70, 297579), (105, 198386), (210, 99193), (281, 74130), (353, 59010), (562, 37065), (706, 29505), (843, 24710), (1059, 19670), (1405, 14826), (1686, 12355), (1765, 11802), (1967, 10590), (2118, 9835), (2471, 8430), (2810, 7413), (3530, 5901), (3934, 5295), (4215, 4942)]