18827500

素因数分解:

$2^2\times 5^4\times {\mathrm{17}}^1\times {\mathrm{443}}^1$

素因数の和:484

約数の個数: 60

約数和(自身を含む): 43692264

約数和(自身を除く): 24864764

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 125, 170, 250, 340, 425, 443, 500, 625, 850, 886, 1250, 1700, 1772, 2125, 2215, 2500, 4250, 4430, 7531, 8500, 8860, 10625, 11075, 15062, 21250, 22150, 30124, 37655, 42500, 44300, 55375, 75310, 110750, 150620, 188275, 221500, 276875, 376550, 553750, 753100, 941375, 1107500, 1882750, 3765500, 4706875, 9413750, 18827500]

約数ペア:

[(1, 18827500), (2, 9413750), (4, 4706875), (5, 3765500), (10, 1882750), (17, 1107500), (20, 941375), (25, 753100), (34, 553750), (50, 376550), (68, 276875), (85, 221500), (100, 188275), (125, 150620), (170, 110750), (250, 75310), (340, 55375), (425, 44300), (443, 42500), (500, 37655), (625, 30124), (850, 22150), (886, 21250), (1250, 15062), (1700, 11075), (1772, 10625), (2125, 8860), (2215, 8500), (2500, 7531), (4250, 4430)]