81480660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:210

約数の個数: 144

約数和(自身を含む): 250865664

約数和(自身を除く): 169385004

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 37, 51, 60, 68, 74, 85, 102, 111, 127, 148, 170, 185, 204, 222, 254, 255, 289, 340, 370, 381, 444, 508, 510, 555, 578, 629, 635, 740, 762, 867, 1020, 1110, 1156, 1258, 1270, 1445, 1524, 1734, 1887, 1905, 2159, 2220, 2516, 2540, 2890, 3145, 3468, 3774, 3810, 4318, 4335, 4699, 5780, 6290, 6477, 7548, 7620, 8636, 8670, 9398, 9435, 10693, 10795, 12580, 12954, 14097, 17340, 18796, 18870, 21386, 21590, 23495, 25908, 28194, 32079, 32385, 36703, 37740, 42772, 43180, 46990, 53465, 56388, 64158, 64770, 70485, 73406, 79883, 93980, 106930, 110109, 128316, 129540, 140970, 146812, 159766, 160395, 183515, 213860, 220218, 239649, 281940, 319532, 320790, 367030, 399415, 440436, 479298, 550545, 641580, 734060, 798830, 958596, 1101090, 1198245, 1358011, 1597660, 2202180, 2396490, 2716022, 4074033, 4792980, 5432044, 6790055, 8148066, 13580110, 16296132, 20370165, 27160220, 40740330, 81480660]

約数ペア:

[(1, 81480660), (2, 40740330), (3, 27160220), (4, 20370165), (5, 16296132), (6, 13580110), (10, 8148066), (12, 6790055), (15, 5432044), (17, 4792980), (20, 4074033), (30, 2716022), (34, 2396490), (37, 2202180), (51, 1597660), (60, 1358011), (68, 1198245), (74, 1101090), (85, 958596), (102, 798830), (111, 734060), (127, 641580), (148, 550545), (170, 479298), (185, 440436), (204, 399415), (222, 367030), (254, 320790), (255, 319532), (289, 281940), (340, 239649), (370, 220218), (381, 213860), (444, 183515), (508, 160395), (510, 159766), (555, 146812), (578, 140970), (629, 129540), (635, 128316), (740, 110109), (762, 106930), (867, 93980), (1020, 79883), (1110, 73406), (1156, 70485), (1258, 64770), (1270, 64158), (1445, 56388), (1524, 53465), (1734, 46990), (1887, 43180), (1905, 42772), (2159, 37740), (2220, 36703), (2516, 32385), (2540, 32079), (2890, 28194), (3145, 25908), (3468, 23495), (3774, 21590), (3810, 21386), (4318, 18870), (4335, 18796), (4699, 17340), (5780, 14097), (6290, 12954), (6477, 12580), (7548, 10795), (7620, 10693), (8636, 9435), (8670, 9398)]