81280860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:156

約数の個数: 192

約数和(自身を含む): 257402880

約数和(自身を除く): 176122020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 37, 38, 41, 47, 57, 60, 74, 76, 82, 94, 95, 111, 114, 123, 141, 148, 164, 185, 188, 190, 205, 222, 228, 235, 246, 282, 285, 370, 380, 410, 444, 470, 492, 555, 564, 570, 615, 703, 705, 740, 779, 820, 893, 940, 1110, 1140, 1230, 1406, 1410, 1517, 1558, 1739, 1786, 1927, 2109, 2220, 2337, 2460, 2679, 2812, 2820, 3034, 3116, 3478, 3515, 3572, 3854, 3895, 4218, 4465, 4551, 4674, 5217, 5358, 5781, 6068, 6956, 7030, 7585, 7708, 7790, 8436, 8695, 8930, 9102, 9348, 9635, 10434, 10545, 10716, 11562, 11685, 13395, 14060, 15170, 15580, 17390, 17860, 18204, 19270, 20868, 21090, 22755, 23124, 23370, 26085, 26790, 28823, 28905, 30340, 33041, 34780, 36613, 38540, 42180, 45510, 46740, 52170, 53580, 57646, 57810, 66082, 71299, 73226, 86469, 91020, 99123, 104340, 109839, 115292, 115620, 132164, 142598, 144115, 146452, 165205, 172938, 183065, 198246, 213897, 219678, 285196, 288230, 330410, 345876, 356495, 366130, 396492, 427794, 432345, 439356, 495615, 549195, 576460, 660820, 712990, 732260, 855588, 864690, 991230, 1069485, 1098390, 1354681, 1425980, 1729380, 1982460, 2138970, 2196780, 2709362, 4064043, 4277940, 5418724, 6773405, 8128086, 13546810, 16256172, 20320215, 27093620, 40640430, 81280860]

約数ペア:

[(1, 81280860), (2, 40640430), (3, 27093620), (4, 20320215), (5, 16256172), (6, 13546810), (10, 8128086), (12, 6773405), (15, 5418724), (19, 4277940), (20, 4064043), (30, 2709362), (37, 2196780), (38, 2138970), (41, 1982460), (47, 1729380), (57, 1425980), (60, 1354681), (74, 1098390), (76, 1069485), (82, 991230), (94, 864690), (95, 855588), (111, 732260), (114, 712990), (123, 660820), (141, 576460), (148, 549195), (164, 495615), (185, 439356), (188, 432345), (190, 427794), (205, 396492), (222, 366130), (228, 356495), (235, 345876), (246, 330410), (282, 288230), (285, 285196), (370, 219678), (380, 213897), (410, 198246), (444, 183065), (470, 172938), (492, 165205), (555, 146452), (564, 144115), (570, 142598), (615, 132164), (703, 115620), (705, 115292), (740, 109839), (779, 104340), (820, 99123), (893, 91020), (940, 86469), (1110, 73226), (1140, 71299), (1230, 66082), (1406, 57810), (1410, 57646), (1517, 53580), (1558, 52170), (1739, 46740), (1786, 45510), (1927, 42180), (2109, 38540), (2220, 36613), (2337, 34780), (2460, 33041), (2679, 30340), (2812, 28905), (2820, 28823), (3034, 26790), (3116, 26085), (3478, 23370), (3515, 23124), (3572, 22755), (3854, 21090), (3895, 20868), (4218, 19270), (4465, 18204), (4551, 17860), (4674, 17390), (5217, 15580), (5358, 15170), (5781, 14060), (6068, 13395), (6956, 11685), (7030, 11562), (7585, 10716), (7708, 10545), (7790, 10434), (8436, 9635), (8695, 9348), (8930, 9102)]