78840080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89591}}^1$

素因数の和:89615

約数の個数: 40

約数和(自身を含む): 199969344

約数和(自身を除く): 121129264

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 89591, 179182, 358364, 447955, 716728, 895910, 985501, 1433456, 1791820, 1971002, 3583640, 3942004, 4927505, 7167280, 7884008, 9855010, 15768016, 19710020, 39420040, 78840080]

約数ペア:

[(1, 78840080), (2, 39420040), (4, 19710020), (5, 15768016), (8, 9855010), (10, 7884008), (11, 7167280), (16, 4927505), (20, 3942004), (22, 3583640), (40, 1971002), (44, 1791820), (55, 1433456), (80, 985501), (88, 895910), (110, 716728), (176, 447955), (220, 358364), (440, 179182), (880, 89591)]