201215920

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{2017}}^1$

素因数の和:2102

約数の個数: 80

約数和(自身を含む): 495459360

約数和(自身を除く): 294243440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 43, 58, 80, 86, 116, 145, 172, 215, 232, 290, 344, 430, 464, 580, 688, 860, 1160, 1247, 1720, 2017, 2320, 2494, 3440, 4034, 4988, 6235, 8068, 9976, 10085, 12470, 16136, 19952, 20170, 24940, 32272, 40340, 49880, 58493, 80680, 86731, 99760, 116986, 161360, 173462, 233972, 292465, 346924, 433655, 467944, 584930, 693848, 867310, 935888, 1169860, 1387696, 1734620, 2339720, 2515199, 3469240, 4679440, 5030398, 6938480, 10060796, 12575995, 20121592, 25151990, 40243184, 50303980, 100607960, 201215920]

約数ペア:

[(1, 201215920), (2, 100607960), (4, 50303980), (5, 40243184), (8, 25151990), (10, 20121592), (16, 12575995), (20, 10060796), (29, 6938480), (40, 5030398), (43, 4679440), (58, 3469240), (80, 2515199), (86, 2339720), (116, 1734620), (145, 1387696), (172, 1169860), (215, 935888), (232, 867310), (290, 693848), (344, 584930), (430, 467944), (464, 433655), (580, 346924), (688, 292465), (860, 233972), (1160, 173462), (1247, 161360), (1720, 116986), (2017, 99760), (2320, 86731), (2494, 80680), (3440, 58493), (4034, 49880), (4988, 40340), (6235, 32272), (8068, 24940), (9976, 20170), (10085, 19952), (12470, 16136)]