19998288

素因数分解:

$2^4\times 3^2\times {\mathrm{113}}^1\times {\mathrm{1229}}^1$

素因数の和:1356

約数の個数: 60

約数和(自身を含む): 56508660

約数和(自身を除く): 36510372

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 113, 144, 226, 339, 452, 678, 904, 1017, 1229, 1356, 1808, 2034, 2458, 2712, 3687, 4068, 4916, 5424, 7374, 8136, 9832, 11061, 14748, 16272, 19664, 22122, 29496, 44244, 58992, 88488, 138877, 176976, 277754, 416631, 555508, 833262, 1111016, 1249893, 1666524, 2222032, 2499786, 3333048, 4999572, 6666096, 9999144, 19998288]

約数ペア:

[(1, 19998288), (2, 9999144), (3, 6666096), (4, 4999572), (6, 3333048), (8, 2499786), (9, 2222032), (12, 1666524), (16, 1249893), (18, 1111016), (24, 833262), (36, 555508), (48, 416631), (72, 277754), (113, 176976), (144, 138877), (226, 88488), (339, 58992), (452, 44244), (678, 29496), (904, 22122), (1017, 19664), (1229, 16272), (1356, 14748), (1808, 11061), (2034, 9832), (2458, 8136), (2712, 7374), (3687, 5424), (4068, 4916)]