61881040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:261

約数の個数: 120

約数和(自身を含む): 163382400

約数和(自身を除く): 101501360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 52, 65, 80, 92, 104, 115, 130, 169, 184, 199, 208, 230, 260, 299, 338, 368, 398, 460, 520, 598, 676, 796, 845, 920, 995, 1040, 1196, 1352, 1495, 1592, 1690, 1840, 1990, 2392, 2587, 2704, 2990, 3184, 3380, 3887, 3980, 4577, 4784, 5174, 5980, 6760, 7774, 7960, 9154, 10348, 11960, 12935, 13520, 15548, 15920, 18308, 19435, 20696, 22885, 23920, 25870, 31096, 33631, 36616, 38870, 41392, 45770, 51740, 59501, 62192, 67262, 73232, 77740, 91540, 103480, 119002, 134524, 155480, 168155, 183080, 206960, 238004, 269048, 297505, 310960, 336310, 366160, 476008, 538096, 595010, 672620, 773513, 952016, 1190020, 1345240, 1547026, 2380040, 2690480, 3094052, 3867565, 4760080, 6188104, 7735130, 12376208, 15470260, 30940520, 61881040]

約数ペア:

[(1, 61881040), (2, 30940520), (4, 15470260), (5, 12376208), (8, 7735130), (10, 6188104), (13, 4760080), (16, 3867565), (20, 3094052), (23, 2690480), (26, 2380040), (40, 1547026), (46, 1345240), (52, 1190020), (65, 952016), (80, 773513), (92, 672620), (104, 595010), (115, 538096), (130, 476008), (169, 366160), (184, 336310), (199, 310960), (208, 297505), (230, 269048), (260, 238004), (299, 206960), (338, 183080), (368, 168155), (398, 155480), (460, 134524), (520, 119002), (598, 103480), (676, 91540), (796, 77740), (845, 73232), (920, 67262), (995, 62192), (1040, 59501), (1196, 51740), (1352, 45770), (1495, 41392), (1592, 38870), (1690, 36616), (1840, 33631), (1990, 31096), (2392, 25870), (2587, 23920), (2704, 22885), (2990, 20696), (3184, 19435), (3380, 18308), (3887, 15920), (3980, 15548), (4577, 13520), (4784, 12935), (5174, 11960), (5980, 10348), (6760, 9154), (7774, 7960)]