81909840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7937}}^1$

素因数の和:7996

約数の個数: 80

約数和(自身を含む): 259858368

約数和(自身を除く): 177948528

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 43, 48, 60, 80, 86, 120, 129, 172, 215, 240, 258, 344, 430, 516, 645, 688, 860, 1032, 1290, 1720, 2064, 2580, 3440, 5160, 7937, 10320, 15874, 23811, 31748, 39685, 47622, 63496, 79370, 95244, 119055, 126992, 158740, 190488, 238110, 317480, 341291, 380976, 476220, 634960, 682582, 952440, 1023873, 1365164, 1706455, 1904880, 2047746, 2730328, 3412910, 4095492, 5119365, 5460656, 6825820, 8190984, 10238730, 13651640, 16381968, 20477460, 27303280, 40954920, 81909840]

約数ペア:

[(1, 81909840), (2, 40954920), (3, 27303280), (4, 20477460), (5, 16381968), (6, 13651640), (8, 10238730), (10, 8190984), (12, 6825820), (15, 5460656), (16, 5119365), (20, 4095492), (24, 3412910), (30, 2730328), (40, 2047746), (43, 1904880), (48, 1706455), (60, 1365164), (80, 1023873), (86, 952440), (120, 682582), (129, 634960), (172, 476220), (215, 380976), (240, 341291), (258, 317480), (344, 238110), (430, 190488), (516, 158740), (645, 126992), (688, 119055), (860, 95244), (1032, 79370), (1290, 63496), (1720, 47622), (2064, 39685), (2580, 31748), (3440, 23811), (5160, 15874), (7937, 10320)]