51186380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2749}}^1$

素因数の和:2791

約数の個数: 72

約数和(自身を含む): 131670000

約数和(自身を除く): 80483620

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1330, 1862, 2660, 2749, 3724, 4655, 5498, 9310, 10996, 13745, 18620, 19243, 27490, 38486, 52231, 54980, 76972, 96215, 104462, 134701, 192430, 208924, 261155, 269402, 365617, 384860, 522310, 538804, 673505, 731234, 1044620, 1347010, 1462468, 1828085, 2559319, 2694020, 3656170, 5118638, 7312340, 10237276, 12796595, 25593190, 51186380]

約数ペア:

[(1, 51186380), (2, 25593190), (4, 12796595), (5, 10237276), (7, 7312340), (10, 5118638), (14, 3656170), (19, 2694020), (20, 2559319), (28, 1828085), (35, 1462468), (38, 1347010), (49, 1044620), (70, 731234), (76, 673505), (95, 538804), (98, 522310), (133, 384860), (140, 365617), (190, 269402), (196, 261155), (245, 208924), (266, 192430), (380, 134701), (490, 104462), (532, 96215), (665, 76972), (931, 54980), (980, 52231), (1330, 38486), (1862, 27490), (2660, 19243), (2749, 18620), (3724, 13745), (4655, 10996), (5498, 9310)]