8420702960

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{51421}}^1$

素因数の和:51546

約数の個数: 80

約数和(自身を含む): 20659302720

約数和(自身を除く): 12238599760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 89, 92, 115, 178, 184, 230, 356, 368, 445, 460, 712, 890, 920, 1424, 1780, 1840, 2047, 3560, 4094, 7120, 8188, 10235, 16376, 20470, 32752, 40940, 51421, 81880, 102842, 163760, 205684, 257105, 411368, 514210, 822736, 1028420, 1182683, 2056840, 2365366, 4113680, 4576469, 4730732, 5913415, 9152938, 9461464, 11826830, 18305876, 18922928, 22882345, 23653660, 36611752, 45764690, 47307320, 73223504, 91529380, 94614640, 105258787, 183058760, 210517574, 366117520, 421035148, 526293935, 842070296, 1052587870, 1684140592, 2105175740, 4210351480, 8420702960]

約数ペア:

[(1, 8420702960), (2, 4210351480), (4, 2105175740), (5, 1684140592), (8, 1052587870), (10, 842070296), (16, 526293935), (20, 421035148), (23, 366117520), (40, 210517574), (46, 183058760), (80, 105258787), (89, 94614640), (92, 91529380), (115, 73223504), (178, 47307320), (184, 45764690), (230, 36611752), (356, 23653660), (368, 22882345), (445, 18922928), (460, 18305876), (712, 11826830), (890, 9461464), (920, 9152938), (1424, 5913415), (1780, 4730732), (1840, 4576469), (2047, 4113680), (3560, 2365366), (4094, 2056840), (7120, 1182683), (8188, 1028420), (10235, 822736), (16376, 514210), (20470, 411368), (32752, 257105), (40940, 205684), (51421, 163760), (81880, 102842)]