871250

素因数分解:

$2^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{41}}^1$

素因数の和:80

約数の個数: 40

約数和(自身を含む): 1771308

約数和(自身を除く): 900058

約数列:

[1, 2, 5, 10, 17, 25, 34, 41, 50, 82, 85, 125, 170, 205, 250, 410, 425, 625, 697, 850, 1025, 1250, 1394, 2050, 2125, 3485, 4250, 5125, 6970, 10250, 10625, 17425, 21250, 25625, 34850, 51250, 87125, 174250, 435625, 871250]

約数ペア:

[(1, 871250), (2, 435625), (5, 174250), (10, 87125), (17, 51250), (25, 34850), (34, 25625), (41, 21250), (50, 17425), (82, 10625), (85, 10250), (125, 6970), (170, 5125), (205, 4250), (250, 3485), (410, 2125), (425, 2050), (625, 1394), (697, 1250), (850, 1025)]