20378016

素因数分解:

$2^5\times 3^2\times {\mathrm{173}}^1\times {\mathrm{409}}^1$

素因数の和:598

約数の個数: 72

約数和(自身を含む): 58427460

約数和(自身を除く): 38049444

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 173, 288, 346, 409, 519, 692, 818, 1038, 1227, 1384, 1557, 1636, 2076, 2454, 2768, 3114, 3272, 3681, 4152, 4908, 5536, 6228, 6544, 7362, 8304, 9816, 12456, 13088, 14724, 16608, 19632, 24912, 29448, 39264, 49824, 58896, 70757, 117792, 141514, 212271, 283028, 424542, 566056, 636813, 849084, 1132112, 1273626, 1698168, 2264224, 2547252, 3396336, 5094504, 6792672, 10189008, 20378016]

約数ペア:

[(1, 20378016), (2, 10189008), (3, 6792672), (4, 5094504), (6, 3396336), (8, 2547252), (9, 2264224), (12, 1698168), (16, 1273626), (18, 1132112), (24, 849084), (32, 636813), (36, 566056), (48, 424542), (72, 283028), (96, 212271), (144, 141514), (173, 117792), (288, 70757), (346, 58896), (409, 49824), (519, 39264), (692, 29448), (818, 24912), (1038, 19632), (1227, 16608), (1384, 14724), (1557, 13088), (1636, 12456), (2076, 9816), (2454, 8304), (2768, 7362), (3114, 6544), (3272, 6228), (3681, 5536), (4152, 4908)]