81753040

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{283}}^1$

素因数の和:476

約数の個数: 80

約数和(自身を含む): 200308608

約数和(自身を除く): 118555568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 157, 184, 230, 283, 314, 368, 460, 566, 628, 785, 920, 1132, 1256, 1415, 1570, 1840, 2264, 2512, 2830, 3140, 3611, 4528, 5660, 6280, 6509, 7222, 11320, 12560, 13018, 14444, 18055, 22640, 26036, 28888, 32545, 36110, 44431, 52072, 57776, 65090, 72220, 88862, 104144, 130180, 144440, 177724, 222155, 260360, 288880, 355448, 444310, 520720, 710896, 888620, 1021913, 1777240, 2043826, 3554480, 4087652, 5109565, 8175304, 10219130, 16350608, 20438260, 40876520, 81753040]

約数ペア:

[(1, 81753040), (2, 40876520), (4, 20438260), (5, 16350608), (8, 10219130), (10, 8175304), (16, 5109565), (20, 4087652), (23, 3554480), (40, 2043826), (46, 1777240), (80, 1021913), (92, 888620), (115, 710896), (157, 520720), (184, 444310), (230, 355448), (283, 288880), (314, 260360), (368, 222155), (460, 177724), (566, 144440), (628, 130180), (785, 104144), (920, 88862), (1132, 72220), (1256, 65090), (1415, 57776), (1570, 52072), (1840, 44431), (2264, 36110), (2512, 32545), (2830, 28888), (3140, 26036), (3611, 22640), (4528, 18055), (5660, 14444), (6280, 13018), (6509, 12560), (7222, 11320)]