251908720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{563}}^1$

素因数の和:647

約数の個数: 160

約数和(自身を含む): 725096448

約数和(自身を除く): 473187728

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 47, 56, 68, 70, 80, 85, 94, 112, 119, 136, 140, 170, 188, 235, 238, 272, 280, 329, 340, 376, 470, 476, 560, 563, 595, 658, 680, 752, 799, 940, 952, 1126, 1190, 1316, 1360, 1598, 1645, 1880, 1904, 2252, 2380, 2632, 2815, 3196, 3290, 3760, 3941, 3995, 4504, 4760, 5264, 5593, 5630, 6392, 6580, 7882, 7990, 9008, 9520, 9571, 11186, 11260, 12784, 13160, 15764, 15980, 19142, 19705, 22372, 22520, 26320, 26461, 27965, 31528, 31960, 38284, 39410, 44744, 45040, 47855, 52922, 55930, 63056, 63920, 66997, 76568, 78820, 89488, 95710, 105844, 111860, 132305, 133994, 153136, 157640, 185227, 191420, 211688, 223720, 264610, 267988, 315280, 334985, 370454, 382840, 423376, 447440, 449837, 529220, 535976, 669970, 740908, 765680, 899674, 926135, 1058440, 1071952, 1339940, 1481816, 1799348, 1852270, 2116880, 2249185, 2679880, 2963632, 3148859, 3598696, 3704540, 4498370, 5359760, 6297718, 7197392, 7409080, 8996740, 12595436, 14818160, 15744295, 17993480, 25190872, 31488590, 35986960, 50381744, 62977180, 125954360, 251908720]

約数ペア:

[(1, 251908720), (2, 125954360), (4, 62977180), (5, 50381744), (7, 35986960), (8, 31488590), (10, 25190872), (14, 17993480), (16, 15744295), (17, 14818160), (20, 12595436), (28, 8996740), (34, 7409080), (35, 7197392), (40, 6297718), (47, 5359760), (56, 4498370), (68, 3704540), (70, 3598696), (80, 3148859), (85, 2963632), (94, 2679880), (112, 2249185), (119, 2116880), (136, 1852270), (140, 1799348), (170, 1481816), (188, 1339940), (235, 1071952), (238, 1058440), (272, 926135), (280, 899674), (329, 765680), (340, 740908), (376, 669970), (470, 535976), (476, 529220), (560, 449837), (563, 447440), (595, 423376), (658, 382840), (680, 370454), (752, 334985), (799, 315280), (940, 267988), (952, 264610), (1126, 223720), (1190, 211688), (1316, 191420), (1360, 185227), (1598, 157640), (1645, 153136), (1880, 133994), (1904, 132305), (2252, 111860), (2380, 105844), (2632, 95710), (2815, 89488), (3196, 78820), (3290, 76568), (3760, 66997), (3941, 63920), (3995, 63056), (4504, 55930), (4760, 52922), (5264, 47855), (5593, 45040), (5630, 44744), (6392, 39410), (6580, 38284), (7882, 31960), (7990, 31528), (9008, 27965), (9520, 26461), (9571, 26320), (11186, 22520), (11260, 22372), (12784, 19705), (13160, 19142), (15764, 15980)]