81029520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{787}}^1$

素因数の和:830

約数の個数: 240

約数和(自身を含む): 320104512

約数和(自身を除く): 239074992

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 18, 20, 22, 24, 26, 30, 33, 36, 39, 40, 44, 45, 48, 52, 55, 60, 65, 66, 72, 78, 80, 88, 90, 99, 104, 110, 117, 120, 130, 132, 143, 144, 156, 165, 176, 180, 195, 198, 208, 220, 234, 240, 260, 264, 286, 312, 330, 360, 390, 396, 429, 440, 468, 495, 520, 528, 572, 585, 624, 660, 715, 720, 780, 787, 792, 858, 880, 936, 990, 1040, 1144, 1170, 1287, 1320, 1430, 1560, 1574, 1584, 1716, 1872, 1980, 2145, 2288, 2340, 2361, 2574, 2640, 2860, 3120, 3148, 3432, 3935, 3960, 4290, 4680, 4722, 5148, 5720, 6296, 6435, 6864, 7083, 7870, 7920, 8580, 8657, 9360, 9444, 10231, 10296, 11440, 11805, 12592, 12870, 14166, 15740, 17160, 17314, 18888, 20462, 20592, 23610, 25740, 25971, 28332, 30693, 31480, 34320, 34628, 35415, 37776, 40924, 43285, 47220, 51155, 51480, 51942, 56664, 61386, 62960, 69256, 70830, 77913, 81848, 86570, 92079, 94440, 102310, 102960, 103884, 112541, 113328, 122772, 129855, 138512, 141660, 153465, 155826, 163696, 173140, 184158, 188880, 204620, 207768, 225082, 245544, 259710, 283320, 306930, 311652, 337623, 346280, 368316, 389565, 409240, 415536, 450164, 460395, 491088, 519420, 562705, 566640, 613860, 623304, 675246, 692560, 736632, 779130, 818480, 900328, 920790, 1012869, 1038840, 1125410, 1227720, 1246608, 1350492, 1473264, 1558260, 1688115, 1800656, 1841580, 2025738, 2077680, 2250820, 2455440, 2700984, 3116520, 3376230, 3683160, 4051476, 4501640, 5064345, 5401968, 6233040, 6752460, 7366320, 8102952, 9003280, 10128690, 13504920, 16205904, 20257380, 27009840, 40514760, 81029520]

約数ペア:

[(1, 81029520), (2, 40514760), (3, 27009840), (4, 20257380), (5, 16205904), (6, 13504920), (8, 10128690), (9, 9003280), (10, 8102952), (11, 7366320), (12, 6752460), (13, 6233040), (15, 5401968), (16, 5064345), (18, 4501640), (20, 4051476), (22, 3683160), (24, 3376230), (26, 3116520), (30, 2700984), (33, 2455440), (36, 2250820), (39, 2077680), (40, 2025738), (44, 1841580), (45, 1800656), (48, 1688115), (52, 1558260), (55, 1473264), (60, 1350492), (65, 1246608), (66, 1227720), (72, 1125410), (78, 1038840), (80, 1012869), (88, 920790), (90, 900328), (99, 818480), (104, 779130), (110, 736632), (117, 692560), (120, 675246), (130, 623304), (132, 613860), (143, 566640), (144, 562705), (156, 519420), (165, 491088), (176, 460395), (180, 450164), (195, 415536), (198, 409240), (208, 389565), (220, 368316), (234, 346280), (240, 337623), (260, 311652), (264, 306930), (286, 283320), (312, 259710), (330, 245544), (360, 225082), (390, 207768), (396, 204620), (429, 188880), (440, 184158), (468, 173140), (495, 163696), (520, 155826), (528, 153465), (572, 141660), (585, 138512), (624, 129855), (660, 122772), (715, 113328), (720, 112541), (780, 103884), (787, 102960), (792, 102310), (858, 94440), (880, 92079), (936, 86570), (990, 81848), (1040, 77913), (1144, 70830), (1170, 69256), (1287, 62960), (1320, 61386), (1430, 56664), (1560, 51942), (1574, 51480), (1584, 51155), (1716, 47220), (1872, 43285), (1980, 40924), (2145, 37776), (2288, 35415), (2340, 34628), (2361, 34320), (2574, 31480), (2640, 30693), (2860, 28332), (3120, 25971), (3148, 25740), (3432, 23610), (3935, 20592), (3960, 20462), (4290, 18888), (4680, 17314), (4722, 17160), (5148, 15740), (5720, 14166), (6296, 12870), (6435, 12592), (6864, 11805), (7083, 11440), (7870, 10296), (7920, 10231), (8580, 9444), (8657, 9360)]