18886530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{613}}^1$

素因数の和:715

約数の個数: 64

約数和(自身を含む): 49512960

約数和(自身を除く): 30626430

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 79, 130, 158, 195, 237, 390, 395, 474, 613, 790, 1027, 1185, 1226, 1839, 2054, 2370, 3065, 3081, 3678, 5135, 6130, 6162, 7969, 9195, 10270, 15405, 15938, 18390, 23907, 30810, 39845, 47814, 48427, 79690, 96854, 119535, 145281, 239070, 242135, 290562, 484270, 629551, 726405, 1259102, 1452810, 1888653, 3147755, 3777306, 6295510, 9443265, 18886530]

約数ペア:

[(1, 18886530), (2, 9443265), (3, 6295510), (5, 3777306), (6, 3147755), (10, 1888653), (13, 1452810), (15, 1259102), (26, 726405), (30, 629551), (39, 484270), (65, 290562), (78, 242135), (79, 239070), (130, 145281), (158, 119535), (195, 96854), (237, 79690), (390, 48427), (395, 47814), (474, 39845), (613, 30810), (790, 23907), (1027, 18390), (1185, 15938), (1226, 15405), (1839, 10270), (2054, 9195), (2370, 7969), (3065, 6162), (3081, 6130), (3678, 5135)]