20168120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1$

素因数の和:277

約数の個数: 128

約数和(自身を含む): 58060800

約数和(自身を除く): 37892680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 19, 20, 28, 34, 35, 38, 40, 56, 68, 70, 76, 85, 95, 119, 133, 136, 140, 152, 170, 190, 223, 238, 266, 280, 323, 340, 380, 446, 476, 532, 595, 646, 665, 680, 760, 892, 952, 1064, 1115, 1190, 1292, 1330, 1561, 1615, 1784, 2230, 2261, 2380, 2584, 2660, 3122, 3230, 3791, 4237, 4460, 4522, 4760, 5320, 6244, 6460, 7582, 7805, 8474, 8920, 9044, 11305, 12488, 12920, 15164, 15610, 16948, 18088, 18955, 21185, 22610, 26537, 29659, 30328, 31220, 33896, 37910, 42370, 45220, 53074, 59318, 62440, 72029, 75820, 84740, 90440, 106148, 118636, 132685, 144058, 148295, 151640, 169480, 212296, 237272, 265370, 288116, 296590, 360145, 504203, 530740, 576232, 593180, 720290, 1008406, 1061480, 1186360, 1440580, 2016812, 2521015, 2881160, 4033624, 5042030, 10084060, 20168120]

約数ペア:

[(1, 20168120), (2, 10084060), (4, 5042030), (5, 4033624), (7, 2881160), (8, 2521015), (10, 2016812), (14, 1440580), (17, 1186360), (19, 1061480), (20, 1008406), (28, 720290), (34, 593180), (35, 576232), (38, 530740), (40, 504203), (56, 360145), (68, 296590), (70, 288116), (76, 265370), (85, 237272), (95, 212296), (119, 169480), (133, 151640), (136, 148295), (140, 144058), (152, 132685), (170, 118636), (190, 106148), (223, 90440), (238, 84740), (266, 75820), (280, 72029), (323, 62440), (340, 59318), (380, 53074), (446, 45220), (476, 42370), (532, 37910), (595, 33896), (646, 31220), (665, 30328), (680, 29659), (760, 26537), (892, 22610), (952, 21185), (1064, 18955), (1115, 18088), (1190, 16948), (1292, 15610), (1330, 15164), (1561, 12920), (1615, 12488), (1784, 11305), (2230, 9044), (2261, 8920), (2380, 8474), (2584, 7805), (2660, 7582), (3122, 6460), (3230, 6244), (3791, 5320), (4237, 4760), (4460, 4522)]