138291250

素因数分解:

$2^1\times 5^4\times {\mathrm{317}}^1\times {\mathrm{349}}^1$

素因数の和:688

約数の個数: 40

約数和(自身を含む): 260775900

約数和(自身を除く): 122484650

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 317, 349, 625, 634, 698, 1250, 1585, 1745, 3170, 3490, 7925, 8725, 15850, 17450, 39625, 43625, 79250, 87250, 110633, 198125, 218125, 221266, 396250, 436250, 553165, 1106330, 2765825, 5531650, 13829125, 27658250, 69145625, 138291250]

約数ペア:

[(1, 138291250), (2, 69145625), (5, 27658250), (10, 13829125), (25, 5531650), (50, 2765825), (125, 1106330), (250, 553165), (317, 436250), (349, 396250), (625, 221266), (634, 218125), (698, 198125), (1250, 110633), (1585, 87250), (1745, 79250), (3170, 43625), (3490, 39625), (7925, 17450), (8725, 15850)]