16872500

素因数分解:

$2^2\times 5^4\times {\mathrm{17}}^1\times {\mathrm{397}}^1$

素因数の和:438

約数の個数: 60

約数和(自身を含む): 39165588

約数和(自身を除く): 22293088

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 125, 170, 250, 340, 397, 425, 500, 625, 794, 850, 1250, 1588, 1700, 1985, 2125, 2500, 3970, 4250, 6749, 7940, 8500, 9925, 10625, 13498, 19850, 21250, 26996, 33745, 39700, 42500, 49625, 67490, 99250, 134980, 168725, 198500, 248125, 337450, 496250, 674900, 843625, 992500, 1687250, 3374500, 4218125, 8436250, 16872500]

約数ペア:

[(1, 16872500), (2, 8436250), (4, 4218125), (5, 3374500), (10, 1687250), (17, 992500), (20, 843625), (25, 674900), (34, 496250), (50, 337450), (68, 248125), (85, 198500), (100, 168725), (125, 134980), (170, 99250), (250, 67490), (340, 49625), (397, 42500), (425, 39700), (500, 33745), (625, 26996), (794, 21250), (850, 19850), (1250, 13498), (1588, 10625), (1700, 9925), (1985, 8500), (2125, 7940), (2500, 6749), (3970, 4250)]