501101900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:388

約数の個数: 108

約数和(自身を含む): 1191330000

約数和(自身を除く): 690228100

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 149, 169, 199, 260, 298, 325, 338, 398, 596, 650, 676, 745, 796, 845, 995, 1300, 1490, 1690, 1937, 1990, 2587, 2980, 3380, 3725, 3874, 3980, 4225, 4975, 5174, 7450, 7748, 8450, 9685, 9950, 10348, 12935, 14900, 16900, 19370, 19900, 25181, 25870, 29651, 33631, 38740, 48425, 50362, 51740, 59302, 64675, 67262, 96850, 100724, 118604, 125905, 129350, 134524, 148255, 168155, 193700, 251810, 258700, 296510, 336310, 385463, 503620, 593020, 629525, 672620, 741275, 770926, 840775, 1259050, 1482550, 1541852, 1681550, 1927315, 2518100, 2965100, 3363100, 3854630, 5011019, 7709260, 9636575, 10022038, 19273150, 20044076, 25055095, 38546300, 50110190, 100220380, 125275475, 250550950, 501101900]

約数ペア:

[(1, 501101900), (2, 250550950), (4, 125275475), (5, 100220380), (10, 50110190), (13, 38546300), (20, 25055095), (25, 20044076), (26, 19273150), (50, 10022038), (52, 9636575), (65, 7709260), (100, 5011019), (130, 3854630), (149, 3363100), (169, 2965100), (199, 2518100), (260, 1927315), (298, 1681550), (325, 1541852), (338, 1482550), (398, 1259050), (596, 840775), (650, 770926), (676, 741275), (745, 672620), (796, 629525), (845, 593020), (995, 503620), (1300, 385463), (1490, 336310), (1690, 296510), (1937, 258700), (1990, 251810), (2587, 193700), (2980, 168155), (3380, 148255), (3725, 134524), (3874, 129350), (3980, 125905), (4225, 118604), (4975, 100724), (5174, 96850), (7450, 67262), (7748, 64675), (8450, 59302), (9685, 51740), (9950, 50362), (10348, 48425), (12935, 38740), (14900, 33631), (16900, 29651), (19370, 25870), (19900, 25181)]