81400080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:385

約数の個数: 160

約数和(自身を含む): 271911168

約数和(自身を除く): 190511088

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 71, 80, 85, 102, 120, 136, 142, 170, 204, 213, 240, 255, 272, 281, 284, 340, 355, 408, 426, 510, 562, 568, 680, 710, 816, 843, 852, 1020, 1065, 1124, 1136, 1207, 1360, 1405, 1420, 1686, 1704, 2040, 2130, 2248, 2414, 2810, 2840, 3372, 3408, 3621, 4080, 4215, 4260, 4496, 4777, 4828, 5620, 5680, 6035, 6744, 7242, 8430, 8520, 9554, 9656, 11240, 12070, 13488, 14331, 14484, 16860, 17040, 18105, 19108, 19312, 19951, 22480, 23885, 24140, 28662, 28968, 33720, 36210, 38216, 39902, 47770, 48280, 57324, 57936, 59853, 67440, 71655, 72420, 76432, 79804, 95540, 96560, 99755, 114648, 119706, 143310, 144840, 159608, 191080, 199510, 229296, 239412, 286620, 289680, 299265, 319216, 339167, 382160, 399020, 478824, 573240, 598530, 678334, 798040, 957648, 1017501, 1146480, 1197060, 1356668, 1596080, 1695835, 2035002, 2394120, 2713336, 3391670, 4070004, 4788240, 5087505, 5426672, 6783340, 8140008, 10175010, 13566680, 16280016, 20350020, 27133360, 40700040, 81400080]

約数ペア:

[(1, 81400080), (2, 40700040), (3, 27133360), (4, 20350020), (5, 16280016), (6, 13566680), (8, 10175010), (10, 8140008), (12, 6783340), (15, 5426672), (16, 5087505), (17, 4788240), (20, 4070004), (24, 3391670), (30, 2713336), (34, 2394120), (40, 2035002), (48, 1695835), (51, 1596080), (60, 1356668), (68, 1197060), (71, 1146480), (80, 1017501), (85, 957648), (102, 798040), (120, 678334), (136, 598530), (142, 573240), (170, 478824), (204, 399020), (213, 382160), (240, 339167), (255, 319216), (272, 299265), (281, 289680), (284, 286620), (340, 239412), (355, 229296), (408, 199510), (426, 191080), (510, 159608), (562, 144840), (568, 143310), (680, 119706), (710, 114648), (816, 99755), (843, 96560), (852, 95540), (1020, 79804), (1065, 76432), (1124, 72420), (1136, 71655), (1207, 67440), (1360, 59853), (1405, 57936), (1420, 57324), (1686, 48280), (1704, 47770), (2040, 39902), (2130, 38216), (2248, 36210), (2414, 33720), (2810, 28968), (2840, 28662), (3372, 24140), (3408, 23885), (3621, 22480), (4080, 19951), (4215, 19312), (4260, 19108), (4496, 18105), (4777, 17040), (4828, 16860), (5620, 14484), (5680, 14331), (6035, 13488), (6744, 12070), (7242, 11240), (8430, 9656), (8520, 9554)]