81238750

素因数分解:

$2^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{3823}}^1$

素因数の和:3862

約数の個数: 40

約数和(自身を含む): 161273376

約数和(自身を除く): 80034626

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 125, 170, 250, 425, 625, 850, 1250, 2125, 3823, 4250, 7646, 10625, 19115, 21250, 38230, 64991, 95575, 129982, 191150, 324955, 477875, 649910, 955750, 1624775, 2389375, 3249550, 4778750, 8123875, 16247750, 40619375, 81238750]

約数ペア:

[(1, 81238750), (2, 40619375), (5, 16247750), (10, 8123875), (17, 4778750), (25, 3249550), (34, 2389375), (50, 1624775), (85, 955750), (125, 649910), (170, 477875), (250, 324955), (425, 191150), (625, 129982), (850, 95575), (1250, 64991), (2125, 38230), (3823, 21250), (4250, 19115), (7646, 10625)]