89461840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^3\times {\mathrm{509}}^1$

素因数の和:561

約数の個数: 80

約数和(自身を含む): 225766800

約数和(自身を除く): 136304960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 509, 520, 676, 845, 1018, 1040, 1352, 1690, 2036, 2197, 2545, 2704, 3380, 4072, 4394, 5090, 6617, 6760, 8144, 8788, 10180, 10985, 13234, 13520, 17576, 20360, 21970, 26468, 33085, 35152, 40720, 43940, 52936, 66170, 86021, 87880, 105872, 132340, 172042, 175760, 264680, 344084, 430105, 529360, 688168, 860210, 1118273, 1376336, 1720420, 2236546, 3440840, 4473092, 5591365, 6881680, 8946184, 11182730, 17892368, 22365460, 44730920, 89461840]

約数ペア:

[(1, 89461840), (2, 44730920), (4, 22365460), (5, 17892368), (8, 11182730), (10, 8946184), (13, 6881680), (16, 5591365), (20, 4473092), (26, 3440840), (40, 2236546), (52, 1720420), (65, 1376336), (80, 1118273), (104, 860210), (130, 688168), (169, 529360), (208, 430105), (260, 344084), (338, 264680), (509, 175760), (520, 172042), (676, 132340), (845, 105872), (1018, 87880), (1040, 86021), (1352, 66170), (1690, 52936), (2036, 43940), (2197, 40720), (2545, 35152), (2704, 33085), (3380, 26468), (4072, 21970), (4394, 20360), (5090, 17576), (6617, 13520), (6760, 13234), (8144, 10985), (8788, 10180)]