20255280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2281}}^1$

素因数の和:2334

約数の個数: 80

約数和(自身を含む): 64516704

約数和(自身を除く): 44261424

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 37, 40, 48, 60, 74, 80, 111, 120, 148, 185, 222, 240, 296, 370, 444, 555, 592, 740, 888, 1110, 1480, 1776, 2220, 2281, 2960, 4440, 4562, 6843, 8880, 9124, 11405, 13686, 18248, 22810, 27372, 34215, 36496, 45620, 54744, 68430, 84397, 91240, 109488, 136860, 168794, 182480, 253191, 273720, 337588, 421985, 506382, 547440, 675176, 843970, 1012764, 1265955, 1350352, 1687940, 2025528, 2531910, 3375880, 4051056, 5063820, 6751760, 10127640, 20255280]

約数ペア:

[(1, 20255280), (2, 10127640), (3, 6751760), (4, 5063820), (5, 4051056), (6, 3375880), (8, 2531910), (10, 2025528), (12, 1687940), (15, 1350352), (16, 1265955), (20, 1012764), (24, 843970), (30, 675176), (37, 547440), (40, 506382), (48, 421985), (60, 337588), (74, 273720), (80, 253191), (111, 182480), (120, 168794), (148, 136860), (185, 109488), (222, 91240), (240, 84397), (296, 68430), (370, 54744), (444, 45620), (555, 36496), (592, 34215), (740, 27372), (888, 22810), (1110, 18248), (1480, 13686), (1776, 11405), (2220, 9124), (2281, 8880), (2960, 6843), (4440, 4562)]