18958750

素因数分解:

$2^1\times 5^4\times {\mathrm{29}}^1\times {\mathrm{523}}^1$

素因数の和:574

約数の個数: 40

約数和(自身を含む): 36831960

約数和(自身を除く): 17873210

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 125, 145, 250, 290, 523, 625, 725, 1046, 1250, 1450, 2615, 3625, 5230, 7250, 13075, 15167, 18125, 26150, 30334, 36250, 65375, 75835, 130750, 151670, 326875, 379175, 653750, 758350, 1895875, 3791750, 9479375, 18958750]

約数ペア:

[(1, 18958750), (2, 9479375), (5, 3791750), (10, 1895875), (25, 758350), (29, 653750), (50, 379175), (58, 326875), (125, 151670), (145, 130750), (250, 75835), (290, 65375), (523, 36250), (625, 30334), (725, 26150), (1046, 18125), (1250, 15167), (1450, 13075), (2615, 7250), (3625, 5230)]