688750

素因数分解:

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

素因数の和:70

約数の個数: 40

約数和(自身を含む): 1405800

約数和(自身を除く): 717050

約数列:

[1, 2, 5, 10, 19, 25, 29, 38, 50, 58, 95, 125, 145, 190, 250, 290, 475, 551, 625, 725, 950, 1102, 1250, 1450, 2375, 2755, 3625, 4750, 5510, 7250, 11875, 13775, 18125, 23750, 27550, 36250, 68875, 137750, 344375, 688750]

約数ペア:

[(1, 688750), (2, 344375), (5, 137750), (10, 68875), (19, 36250), (25, 27550), (29, 23750), (38, 18125), (50, 13775), (58, 11875), (95, 7250), (125, 5510), (145, 4750), (190, 3625), (250, 2755), (290, 2375), (475, 1450), (551, 1250), (625, 1102), (725, 950)]