81586480

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{641}}^1$

素因数の和:734

約数の個数: 80

約数和(自身を含む): 199656864

約数和(自身を除く): 118070384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 43, 74, 80, 86, 148, 172, 185, 215, 296, 344, 370, 430, 592, 641, 688, 740, 860, 1282, 1480, 1591, 1720, 2564, 2960, 3182, 3205, 3440, 5128, 6364, 6410, 7955, 10256, 12728, 12820, 15910, 23717, 25456, 25640, 27563, 31820, 47434, 51280, 55126, 63640, 94868, 110252, 118585, 127280, 137815, 189736, 220504, 237170, 275630, 379472, 441008, 474340, 551260, 948680, 1019831, 1102520, 1897360, 2039662, 2205040, 4079324, 5099155, 8158648, 10198310, 16317296, 20396620, 40793240, 81586480]

約数ペア:

[(1, 81586480), (2, 40793240), (4, 20396620), (5, 16317296), (8, 10198310), (10, 8158648), (16, 5099155), (20, 4079324), (37, 2205040), (40, 2039662), (43, 1897360), (74, 1102520), (80, 1019831), (86, 948680), (148, 551260), (172, 474340), (185, 441008), (215, 379472), (296, 275630), (344, 237170), (370, 220504), (430, 189736), (592, 137815), (641, 127280), (688, 118585), (740, 110252), (860, 94868), (1282, 63640), (1480, 55126), (1591, 51280), (1720, 47434), (2564, 31820), (2960, 27563), (3182, 25640), (3205, 25456), (3440, 23717), (5128, 15910), (6364, 12820), (6410, 12728), (7955, 10256)]