20179000

素因数分解:

$2^3\times 5^3\times {\mathrm{17}}^1\times {\mathrm{1187}}^1$

素因数の和:1225

約数の個数: 64

約数和(自身を含む): 50038560

約数和(自身を除く): 29859560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 125, 136, 170, 200, 250, 340, 425, 500, 680, 850, 1000, 1187, 1700, 2125, 2374, 3400, 4250, 4748, 5935, 8500, 9496, 11870, 17000, 20179, 23740, 29675, 40358, 47480, 59350, 80716, 100895, 118700, 148375, 161432, 201790, 237400, 296750, 403580, 504475, 593500, 807160, 1008950, 1187000, 2017900, 2522375, 4035800, 5044750, 10089500, 20179000]

約数ペア:

[(1, 20179000), (2, 10089500), (4, 5044750), (5, 4035800), (8, 2522375), (10, 2017900), (17, 1187000), (20, 1008950), (25, 807160), (34, 593500), (40, 504475), (50, 403580), (68, 296750), (85, 237400), (100, 201790), (125, 161432), (136, 148375), (170, 118700), (200, 100895), (250, 80716), (340, 59350), (425, 47480), (500, 40358), (680, 29675), (850, 23740), (1000, 20179), (1187, 17000), (1700, 11870), (2125, 9496), (2374, 8500), (3400, 5935), (4250, 4748)]