28011100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{743}}^1$

素因数の和:799

約数の個数: 72

約数和(自身を含む): 67808160

約数和(自身を除く): 39797060

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 29, 50, 52, 58, 65, 100, 116, 130, 145, 260, 290, 325, 377, 580, 650, 725, 743, 754, 1300, 1450, 1486, 1508, 1885, 2900, 2972, 3715, 3770, 7430, 7540, 9425, 9659, 14860, 18575, 18850, 19318, 21547, 37150, 37700, 38636, 43094, 48295, 74300, 86188, 96590, 107735, 193180, 215470, 241475, 280111, 430940, 482950, 538675, 560222, 965900, 1077350, 1120444, 1400555, 2154700, 2801110, 5602220, 7002775, 14005550, 28011100]

約数ペア:

[(1, 28011100), (2, 14005550), (4, 7002775), (5, 5602220), (10, 2801110), (13, 2154700), (20, 1400555), (25, 1120444), (26, 1077350), (29, 965900), (50, 560222), (52, 538675), (58, 482950), (65, 430940), (100, 280111), (116, 241475), (130, 215470), (145, 193180), (260, 107735), (290, 96590), (325, 86188), (377, 74300), (580, 48295), (650, 43094), (725, 38636), (743, 37700), (754, 37150), (1300, 21547), (1450, 19318), (1486, 18850), (1508, 18575), (1885, 14860), (2900, 9659), (2972, 9425), (3715, 7540), (3770, 7430)]