16815500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^2\times {\mathrm{199}}^1$

素因数の和:244

約数の個数: 72

約数和(自身を含む): 39967200

約数和(自身を除く): 23151700

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 169, 199, 250, 260, 325, 338, 398, 500, 650, 676, 796, 845, 995, 1300, 1625, 1690, 1990, 2587, 3250, 3380, 3980, 4225, 4975, 5174, 6500, 8450, 9950, 10348, 12935, 16900, 19900, 21125, 24875, 25870, 33631, 42250, 49750, 51740, 64675, 67262, 84500, 99500, 129350, 134524, 168155, 258700, 323375, 336310, 646750, 672620, 840775, 1293500, 1681550, 3363100, 4203875, 8407750, 16815500]

約数ペア:

[(1, 16815500), (2, 8407750), (4, 4203875), (5, 3363100), (10, 1681550), (13, 1293500), (20, 840775), (25, 672620), (26, 646750), (50, 336310), (52, 323375), (65, 258700), (100, 168155), (125, 134524), (130, 129350), (169, 99500), (199, 84500), (250, 67262), (260, 64675), (325, 51740), (338, 49750), (398, 42250), (500, 33631), (650, 25870), (676, 24875), (796, 21125), (845, 19900), (995, 16900), (1300, 12935), (1625, 10348), (1690, 9950), (1990, 8450), (2587, 6500), (3250, 5174), (3380, 4975), (3980, 4225)]