17720950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1$

素因数の和:361

約数の個数: 48

約数和(自身を含む): 35935200

約数和(自身を除く): 18214250

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 137, 199, 274, 325, 398, 650, 685, 995, 1370, 1781, 1990, 2587, 3425, 3562, 4975, 5174, 6850, 8905, 9950, 12935, 17810, 25870, 27263, 44525, 54526, 64675, 89050, 129350, 136315, 272630, 354419, 681575, 708838, 1363150, 1772095, 3544190, 8860475, 17720950]

約数ペア:

[(1, 17720950), (2, 8860475), (5, 3544190), (10, 1772095), (13, 1363150), (25, 708838), (26, 681575), (50, 354419), (65, 272630), (130, 136315), (137, 129350), (199, 89050), (274, 64675), (325, 54526), (398, 44525), (650, 27263), (685, 25870), (995, 17810), (1370, 12935), (1781, 9950), (1990, 8905), (2587, 6850), (3425, 5174), (3562, 4975)]