20121432720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1\times {\mathrm{4759}}^1$

素因数の和:5077

約数の個数: 160

約数和(自身を含む): 63462604800

約数和(自身を除く): 43341172080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 79, 80, 120, 158, 223, 237, 240, 316, 395, 446, 474, 632, 669, 790, 892, 948, 1115, 1185, 1264, 1338, 1580, 1784, 1896, 2230, 2370, 2676, 3160, 3345, 3568, 3792, 4460, 4740, 4759, 5352, 6320, 6690, 8920, 9480, 9518, 10704, 13380, 14277, 17617, 17840, 18960, 19036, 23795, 26760, 28554, 35234, 38072, 47590, 52851, 53520, 57108, 70468, 71385, 76144, 88085, 95180, 105702, 114216, 140936, 142770, 176170, 190360, 211404, 228432, 264255, 281872, 285540, 352340, 375961, 380720, 422808, 528510, 571080, 704680, 751922, 845616, 1057020, 1061257, 1127883, 1142160, 1409360, 1503844, 1879805, 2114040, 2122514, 2255766, 3007688, 3183771, 3759610, 4228080, 4245028, 4511532, 5306285, 5639415, 6015376, 6367542, 7519220, 8490056, 9023064, 10612570, 11278830, 12735084, 15038440, 15918855, 16980112, 18046128, 21225140, 22557660, 25470168, 30076880, 31837710, 42450280, 45115320, 50940336, 63675420, 83839303, 84900560, 90230640, 127350840, 167678606, 251517909, 254701680, 335357212, 419196515, 503035818, 670714424, 838393030, 1006071636, 1257589545, 1341428848, 1676786060, 2012143272, 2515179090, 3353572120, 4024286544, 5030358180, 6707144240, 10060716360, 20121432720]

約数ペア:

[(1, 20121432720), (2, 10060716360), (3, 6707144240), (4, 5030358180), (5, 4024286544), (6, 3353572120), (8, 2515179090), (10, 2012143272), (12, 1676786060), (15, 1341428848), (16, 1257589545), (20, 1006071636), (24, 838393030), (30, 670714424), (40, 503035818), (48, 419196515), (60, 335357212), (79, 254701680), (80, 251517909), (120, 167678606), (158, 127350840), (223, 90230640), (237, 84900560), (240, 83839303), (316, 63675420), (395, 50940336), (446, 45115320), (474, 42450280), (632, 31837710), (669, 30076880), (790, 25470168), (892, 22557660), (948, 21225140), (1115, 18046128), (1185, 16980112), (1264, 15918855), (1338, 15038440), (1580, 12735084), (1784, 11278830), (1896, 10612570), (2230, 9023064), (2370, 8490056), (2676, 7519220), (3160, 6367542), (3345, 6015376), (3568, 5639415), (3792, 5306285), (4460, 4511532), (4740, 4245028), (4759, 4228080), (5352, 3759610), (6320, 3183771), (6690, 3007688), (8920, 2255766), (9480, 2122514), (9518, 2114040), (10704, 1879805), (13380, 1503844), (14277, 1409360), (17617, 1142160), (17840, 1127883), (18960, 1061257), (19036, 1057020), (23795, 845616), (26760, 751922), (28554, 704680), (35234, 571080), (38072, 528510), (47590, 422808), (52851, 380720), (53520, 375961), (57108, 352340), (70468, 285540), (71385, 281872), (76144, 264255), (88085, 228432), (95180, 211404), (105702, 190360), (114216, 176170), (140936, 142770)]