28538750

素因数分解:

$2^1\times 5^4\times {\mathrm{17}}^2\times {\mathrm{79}}^1$

素因数の和:135

約数の個数: 60

約数和(自身を含む): 57544080

約数和(自身を除く): 29005330

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 79, 85, 125, 158, 170, 250, 289, 395, 425, 578, 625, 790, 850, 1250, 1343, 1445, 1975, 2125, 2686, 2890, 3950, 4250, 6715, 7225, 9875, 10625, 13430, 14450, 19750, 21250, 22831, 33575, 36125, 45662, 49375, 67150, 72250, 98750, 114155, 167875, 180625, 228310, 335750, 361250, 570775, 839375, 1141550, 1678750, 2853875, 5707750, 14269375, 28538750]

約数ペア:

[(1, 28538750), (2, 14269375), (5, 5707750), (10, 2853875), (17, 1678750), (25, 1141550), (34, 839375), (50, 570775), (79, 361250), (85, 335750), (125, 228310), (158, 180625), (170, 167875), (250, 114155), (289, 98750), (395, 72250), (425, 67150), (578, 49375), (625, 45662), (790, 36125), (850, 33575), (1250, 22831), (1343, 21250), (1445, 19750), (1975, 14450), (2125, 13430), (2686, 10625), (2890, 9875), (3950, 7225), (4250, 6715)]