16787500

素因数分解:

$2^2\times 5^5\times {\mathrm{17}}^1\times {\mathrm{79}}^1$

素因数の和:125

約数の個数: 72

約数和(自身を含む): 39372480

約数和(自身を除く): 22584980

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 79, 85, 100, 125, 158, 170, 250, 316, 340, 395, 425, 500, 625, 790, 850, 1250, 1343, 1580, 1700, 1975, 2125, 2500, 2686, 3125, 3950, 4250, 5372, 6250, 6715, 7900, 8500, 9875, 10625, 12500, 13430, 19750, 21250, 26860, 33575, 39500, 42500, 49375, 53125, 67150, 98750, 106250, 134300, 167875, 197500, 212500, 246875, 335750, 493750, 671500, 839375, 987500, 1678750, 3357500, 4196875, 8393750, 16787500]

約数ペア:

[(1, 16787500), (2, 8393750), (4, 4196875), (5, 3357500), (10, 1678750), (17, 987500), (20, 839375), (25, 671500), (34, 493750), (50, 335750), (68, 246875), (79, 212500), (85, 197500), (100, 167875), (125, 134300), (158, 106250), (170, 98750), (250, 67150), (316, 53125), (340, 49375), (395, 42500), (425, 39500), (500, 33575), (625, 26860), (790, 21250), (850, 19750), (1250, 13430), (1343, 12500), (1580, 10625), (1700, 9875), (1975, 8500), (2125, 7900), (2500, 6715), (2686, 6250), (3125, 5372), (3950, 4250)]