28238750

素因数分解:

$2^1\times 5^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:111

約数の個数: 80

約数和(自身を含む): 59043600

約数和(自身を除く): 30804850

約数列:

[1, 2, 5, 10, 19, 25, 29, 38, 41, 50, 58, 82, 95, 125, 145, 190, 205, 250, 290, 410, 475, 551, 625, 725, 779, 950, 1025, 1102, 1189, 1250, 1450, 1558, 2050, 2375, 2378, 2755, 3625, 3895, 4750, 5125, 5510, 5945, 7250, 7790, 10250, 11875, 11890, 13775, 18125, 19475, 22591, 23750, 25625, 27550, 29725, 36250, 38950, 45182, 51250, 59450, 68875, 97375, 112955, 137750, 148625, 194750, 225910, 297250, 344375, 486875, 564775, 688750, 743125, 973750, 1129550, 1486250, 2823875, 5647750, 14119375, 28238750]

約数ペア:

[(1, 28238750), (2, 14119375), (5, 5647750), (10, 2823875), (19, 1486250), (25, 1129550), (29, 973750), (38, 743125), (41, 688750), (50, 564775), (58, 486875), (82, 344375), (95, 297250), (125, 225910), (145, 194750), (190, 148625), (205, 137750), (250, 112955), (290, 97375), (410, 68875), (475, 59450), (551, 51250), (625, 45182), (725, 38950), (779, 36250), (950, 29725), (1025, 27550), (1102, 25625), (1189, 23750), (1250, 22591), (1450, 19475), (1558, 18125), (2050, 13775), (2375, 11890), (2378, 11875), (2755, 10250), (3625, 7790), (3895, 7250), (4750, 5945), (5125, 5510)]