72612500

素因数分解:

$2^2\times 5^5\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 164161368

約数和(自身を除く): 91548868

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 50, 74, 100, 125, 148, 157, 185, 250, 314, 370, 500, 625, 628, 740, 785, 925, 1250, 1570, 1850, 2500, 3125, 3140, 3700, 3925, 4625, 5809, 6250, 7850, 9250, 11618, 12500, 15700, 18500, 19625, 23125, 23236, 29045, 39250, 46250, 58090, 78500, 92500, 98125, 115625, 116180, 145225, 196250, 231250, 290450, 392500, 462500, 490625, 580900, 726125, 981250, 1452250, 1962500, 2904500, 3630625, 7261250, 14522500, 18153125, 36306250, 72612500]

約数ペア:

[(1, 72612500), (2, 36306250), (4, 18153125), (5, 14522500), (10, 7261250), (20, 3630625), (25, 2904500), (37, 1962500), (50, 1452250), (74, 981250), (100, 726125), (125, 580900), (148, 490625), (157, 462500), (185, 392500), (250, 290450), (314, 231250), (370, 196250), (500, 145225), (625, 116180), (628, 115625), (740, 98125), (785, 92500), (925, 78500), (1250, 58090), (1570, 46250), (1850, 39250), (2500, 29045), (3125, 23236), (3140, 23125), (3700, 19625), (3925, 18500), (4625, 15700), (5809, 12500), (6250, 11618), (7850, 9250)]