18807490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{727}}^1$

素因数の和:946

約数の個数: 32

約数和(自身を含む): 36691200

約数和(自身を除く): 17883710

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 199, 398, 727, 995, 1454, 1990, 2587, 3635, 5174, 7270, 9451, 12935, 18902, 25870, 47255, 94510, 144673, 289346, 723365, 1446730, 1880749, 3761498, 9403745, 18807490]

約数ペア:

[(1, 18807490), (2, 9403745), (5, 3761498), (10, 1880749), (13, 1446730), (26, 723365), (65, 289346), (130, 144673), (199, 94510), (398, 47255), (727, 25870), (995, 18902), (1454, 12935), (1990, 9451), (2587, 7270), (3635, 5174)]