40805280

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{659}}^1$

素因数の和:723

約数の個数: 144

約数和(自身を含む): 142702560

約数和(自身を除く): 101897280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 43, 45, 48, 60, 72, 80, 86, 90, 96, 120, 129, 144, 160, 172, 180, 215, 240, 258, 288, 344, 360, 387, 430, 480, 516, 645, 659, 688, 720, 774, 860, 1032, 1290, 1318, 1376, 1440, 1548, 1720, 1935, 1977, 2064, 2580, 2636, 3096, 3295, 3440, 3870, 3954, 4128, 5160, 5272, 5931, 6192, 6590, 6880, 7740, 7908, 9885, 10320, 10544, 11862, 12384, 13180, 15480, 15816, 19770, 20640, 21088, 23724, 26360, 28337, 29655, 30960, 31632, 39540, 47448, 52720, 56674, 59310, 61920, 63264, 79080, 85011, 94896, 105440, 113348, 118620, 141685, 158160, 170022, 189792, 226696, 237240, 255033, 283370, 316320, 340044, 425055, 453392, 474480, 510066, 566740, 680088, 850110, 906784, 948960, 1020132, 1133480, 1275165, 1360176, 1700220, 2040264, 2266960, 2550330, 2720352, 3400440, 4080528, 4533920, 5100660, 6800880, 8161056, 10201320, 13601760, 20402640, 40805280]

約数ペア:

[(1, 40805280), (2, 20402640), (3, 13601760), (4, 10201320), (5, 8161056), (6, 6800880), (8, 5100660), (9, 4533920), (10, 4080528), (12, 3400440), (15, 2720352), (16, 2550330), (18, 2266960), (20, 2040264), (24, 1700220), (30, 1360176), (32, 1275165), (36, 1133480), (40, 1020132), (43, 948960), (45, 906784), (48, 850110), (60, 680088), (72, 566740), (80, 510066), (86, 474480), (90, 453392), (96, 425055), (120, 340044), (129, 316320), (144, 283370), (160, 255033), (172, 237240), (180, 226696), (215, 189792), (240, 170022), (258, 158160), (288, 141685), (344, 118620), (360, 113348), (387, 105440), (430, 94896), (480, 85011), (516, 79080), (645, 63264), (659, 61920), (688, 59310), (720, 56674), (774, 52720), (860, 47448), (1032, 39540), (1290, 31632), (1318, 30960), (1376, 29655), (1440, 28337), (1548, 26360), (1720, 23724), (1935, 21088), (1977, 20640), (2064, 19770), (2580, 15816), (2636, 15480), (3096, 13180), (3295, 12384), (3440, 11862), (3870, 10544), (3954, 10320), (4128, 9885), (5160, 7908), (5272, 7740), (5931, 6880), (6192, 6590)]