1815397920

素因数分解:

$2^5\times 3^4\times 5^1\times 7^1\times {\mathrm{20011}}^1$

素因数の和:20045

約数の個数: 240

約数和(自身を含む): 7322470848

約数和(自身を除く): 5507072928

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 162, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 324, 336, 360, 378, 405, 420, 432, 480, 504, 540, 560, 567, 630, 648, 672, 720, 756, 810, 840, 864, 945, 1008, 1080, 1120, 1134, 1260, 1296, 1440, 1512, 1620, 1680, 1890, 2016, 2160, 2268, 2520, 2592, 2835, 3024, 3240, 3360, 3780, 4320, 4536, 5040, 5670, 6048, 6480, 7560, 9072, 10080, 11340, 12960, 15120, 18144, 20011, 22680, 30240, 40022, 45360, 60033, 80044, 90720, 100055, 120066, 140077, 160088, 180099, 200110, 240132, 280154, 300165, 320176, 360198, 400220, 420231, 480264, 540297, 560308, 600330, 640352, 700385, 720396, 800440, 840462, 900495, 960528, 1080594, 1120616, 1200660, 1260693, 1400770, 1440792, 1600880, 1620891, 1680924, 1800990, 1921056, 2101155, 2161188, 2241232, 2401320, 2521386, 2701485, 2801540, 2881584, 3201760, 3241782, 3361848, 3601980, 3782079, 4202310, 4322376, 4482464, 4802640, 5042772, 5402970, 5603080, 5763168, 6303465, 6483564, 6723696, 7203960, 7564158, 8104455, 8404620, 8644752, 9605280, 10085544, 10805940, 11206160, 11346237, 12606930, 12967128, 13447392, 14407920, 15128316, 16208910, 16809240, 17289504, 18910395, 20171088, 21611880, 22412320, 22692474, 25213860, 25934256, 28815840, 30256632, 32417820, 33618480, 37820790, 40342176, 43223760, 45384948, 50427720, 51868512, 56731185, 60513264, 64835640, 67236960, 75641580, 86447520, 90769896, 100855440, 113462370, 121026528, 129671280, 151283160, 181539792, 201710880, 226924740, 259342560, 302566320, 363079584, 453849480, 605132640, 907698960, 1815397920]

約数ペア:

[(1, 1815397920), (2, 907698960), (3, 605132640), (4, 453849480), (5, 363079584), (6, 302566320), (7, 259342560), (8, 226924740), (9, 201710880), (10, 181539792), (12, 151283160), (14, 129671280), (15, 121026528), (16, 113462370), (18, 100855440), (20, 90769896), (21, 86447520), (24, 75641580), (27, 67236960), (28, 64835640), (30, 60513264), (32, 56731185), (35, 51868512), (36, 50427720), (40, 45384948), (42, 43223760), (45, 40342176), (48, 37820790), (54, 33618480), (56, 32417820), (60, 30256632), (63, 28815840), (70, 25934256), (72, 25213860), (80, 22692474), (81, 22412320), (84, 21611880), (90, 20171088), (96, 18910395), (105, 17289504), (108, 16809240), (112, 16208910), (120, 15128316), (126, 14407920), (135, 13447392), (140, 12967128), (144, 12606930), (160, 11346237), (162, 11206160), (168, 10805940), (180, 10085544), (189, 9605280), (210, 8644752), (216, 8404620), (224, 8104455), (240, 7564158), (252, 7203960), (270, 6723696), (280, 6483564), (288, 6303465), (315, 5763168), (324, 5603080), (336, 5402970), (360, 5042772), (378, 4802640), (405, 4482464), (420, 4322376), (432, 4202310), (480, 3782079), (504, 3601980), (540, 3361848), (560, 3241782), (567, 3201760), (630, 2881584), (648, 2801540), (672, 2701485), (720, 2521386), (756, 2401320), (810, 2241232), (840, 2161188), (864, 2101155), (945, 1921056), (1008, 1800990), (1080, 1680924), (1120, 1620891), (1134, 1600880), (1260, 1440792), (1296, 1400770), (1440, 1260693), (1512, 1200660), (1620, 1120616), (1680, 1080594), (1890, 960528), (2016, 900495), (2160, 840462), (2268, 800440), (2520, 720396), (2592, 700385), (2835, 640352), (3024, 600330), (3240, 560308), (3360, 540297), (3780, 480264), (4320, 420231), (4536, 400220), (5040, 360198), (5670, 320176), (6048, 300165), (6480, 280154), (7560, 240132), (9072, 200110), (10080, 180099), (11340, 160088), (12960, 140077), (15120, 120066), (18144, 100055), (20011, 90720), (22680, 80044), (30240, 60033), (40022, 45360)]