51705780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{409}}^1$

素因数の和:478

約数の個数: 144

約数和(自身を含む): 172751040

約数和(自身を除く): 121045260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 49, 60, 70, 84, 86, 98, 105, 129, 140, 147, 172, 196, 210, 215, 245, 258, 294, 301, 409, 420, 430, 490, 516, 588, 602, 645, 735, 818, 860, 903, 980, 1204, 1227, 1290, 1470, 1505, 1636, 1806, 2045, 2107, 2454, 2580, 2863, 2940, 3010, 3612, 4090, 4214, 4515, 4908, 5726, 6020, 6135, 6321, 8180, 8428, 8589, 9030, 10535, 11452, 12270, 12642, 14315, 17178, 17587, 18060, 20041, 21070, 24540, 25284, 28630, 31605, 34356, 35174, 40082, 42140, 42945, 52761, 57260, 60123, 63210, 70348, 80164, 85890, 87935, 100205, 105522, 120246, 123109, 126420, 171780, 175870, 200410, 211044, 240492, 246218, 263805, 300615, 351740, 369327, 400820, 492436, 527610, 601230, 615545, 738654, 861763, 1055220, 1202460, 1231090, 1477308, 1723526, 1846635, 2462180, 2585289, 3447052, 3693270, 4308815, 5170578, 7386540, 8617630, 10341156, 12926445, 17235260, 25852890, 51705780]

約数ペア:

[(1, 51705780), (2, 25852890), (3, 17235260), (4, 12926445), (5, 10341156), (6, 8617630), (7, 7386540), (10, 5170578), (12, 4308815), (14, 3693270), (15, 3447052), (20, 2585289), (21, 2462180), (28, 1846635), (30, 1723526), (35, 1477308), (42, 1231090), (43, 1202460), (49, 1055220), (60, 861763), (70, 738654), (84, 615545), (86, 601230), (98, 527610), (105, 492436), (129, 400820), (140, 369327), (147, 351740), (172, 300615), (196, 263805), (210, 246218), (215, 240492), (245, 211044), (258, 200410), (294, 175870), (301, 171780), (409, 126420), (420, 123109), (430, 120246), (490, 105522), (516, 100205), (588, 87935), (602, 85890), (645, 80164), (735, 70348), (818, 63210), (860, 60123), (903, 57260), (980, 52761), (1204, 42945), (1227, 42140), (1290, 40082), (1470, 35174), (1505, 34356), (1636, 31605), (1806, 28630), (2045, 25284), (2107, 24540), (2454, 21070), (2580, 20041), (2863, 18060), (2940, 17587), (3010, 17178), (3612, 14315), (4090, 12642), (4214, 12270), (4515, 11452), (4908, 10535), (5726, 9030), (6020, 8589), (6135, 8428), (6321, 8180)]