213539720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:247

約数の個数: 128

約数和(自身を含む): 533174400

約数和(自身を除く): 319634680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 67, 68, 85, 86, 109, 134, 136, 170, 172, 215, 218, 268, 335, 340, 344, 430, 436, 536, 545, 670, 680, 731, 860, 872, 1090, 1139, 1340, 1462, 1720, 1853, 2180, 2278, 2680, 2881, 2924, 3655, 3706, 4360, 4556, 4687, 5695, 5762, 5848, 7303, 7310, 7412, 9112, 9265, 9374, 11390, 11524, 14405, 14606, 14620, 14824, 18530, 18748, 22780, 23048, 23435, 28810, 29212, 29240, 36515, 37060, 37496, 45560, 46870, 48977, 57620, 58424, 73030, 74120, 79679, 93740, 97954, 115240, 124151, 146060, 159358, 187480, 195908, 244885, 248302, 292120, 314029, 318716, 391816, 398395, 489770, 496604, 620755, 628058, 637432, 796790, 979540, 993208, 1241510, 1256116, 1570145, 1593580, 1959080, 2483020, 2512232, 3140290, 3187160, 4966040, 5338493, 6280580, 10676986, 12561160, 21353972, 26692465, 42707944, 53384930, 106769860, 213539720]

約数ペア:

[(1, 213539720), (2, 106769860), (4, 53384930), (5, 42707944), (8, 26692465), (10, 21353972), (17, 12561160), (20, 10676986), (34, 6280580), (40, 5338493), (43, 4966040), (67, 3187160), (68, 3140290), (85, 2512232), (86, 2483020), (109, 1959080), (134, 1593580), (136, 1570145), (170, 1256116), (172, 1241510), (215, 993208), (218, 979540), (268, 796790), (335, 637432), (340, 628058), (344, 620755), (430, 496604), (436, 489770), (536, 398395), (545, 391816), (670, 318716), (680, 314029), (731, 292120), (860, 248302), (872, 244885), (1090, 195908), (1139, 187480), (1340, 159358), (1462, 146060), (1720, 124151), (1853, 115240), (2180, 97954), (2278, 93740), (2680, 79679), (2881, 74120), (2924, 73030), (3655, 58424), (3706, 57620), (4360, 48977), (4556, 46870), (4687, 45560), (5695, 37496), (5762, 37060), (5848, 36515), (7303, 29240), (7310, 29212), (7412, 28810), (9112, 23435), (9265, 23048), (9374, 22780), (11390, 18748), (11524, 18530), (14405, 14824), (14606, 14620)]