19190860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2381}}^1$

素因数の和:2434

約数の個数: 48

約数和(自身を含む): 44819712

約数和(自身を除く): 25628852

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 2381, 4030, 4762, 8060, 9524, 11905, 23810, 30953, 47620, 61906, 73811, 123812, 147622, 154765, 295244, 309530, 369055, 619060, 738110, 959543, 1476220, 1919086, 3838172, 4797715, 9595430, 19190860]

約数ペア:

[(1, 19190860), (2, 9595430), (4, 4797715), (5, 3838172), (10, 1919086), (13, 1476220), (20, 959543), (26, 738110), (31, 619060), (52, 369055), (62, 309530), (65, 295244), (124, 154765), (130, 147622), (155, 123812), (260, 73811), (310, 61906), (403, 47620), (620, 30953), (806, 23810), (1612, 11905), (2015, 9524), (2381, 8060), (4030, 4762)]