1891250

素因数分解:

$2^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{89}}^1$

素因数の和:128

約数の個数: 40

約数和(自身を含む): 3795660

約数和(自身を除く): 1904410

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 89, 125, 170, 178, 250, 425, 445, 625, 850, 890, 1250, 1513, 2125, 2225, 3026, 4250, 4450, 7565, 10625, 11125, 15130, 21250, 22250, 37825, 55625, 75650, 111250, 189125, 378250, 945625, 1891250]

約数ペア:

[(1, 1891250), (2, 945625), (5, 378250), (10, 189125), (17, 111250), (25, 75650), (34, 55625), (50, 37825), (85, 22250), (89, 21250), (125, 15130), (170, 11125), (178, 10625), (250, 7565), (425, 4450), (445, 4250), (625, 3026), (850, 2225), (890, 2125), (1250, 1513)]