51409820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:304

約数の個数: 144

約数和(自身を含む): 144789120

約数和(自身を除く): 93379300

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 49, 55, 70, 76, 77, 95, 98, 110, 133, 140, 154, 190, 196, 209, 220, 245, 251, 266, 308, 380, 385, 418, 490, 502, 532, 539, 665, 770, 836, 931, 980, 1004, 1045, 1078, 1255, 1330, 1463, 1540, 1757, 1862, 2090, 2156, 2510, 2660, 2695, 2761, 2926, 3514, 3724, 4180, 4655, 4769, 5020, 5390, 5522, 5852, 7028, 7315, 8785, 9310, 9538, 10241, 10780, 11044, 12299, 13805, 14630, 17570, 18620, 19076, 19327, 20482, 23845, 24598, 27610, 29260, 33383, 35140, 38654, 40964, 47690, 49196, 51205, 52459, 55220, 61495, 66766, 77308, 95380, 96635, 102410, 104918, 122990, 133532, 135289, 166915, 193270, 204820, 209836, 233681, 245980, 262295, 270578, 333830, 367213, 386540, 467362, 524590, 541156, 667660, 676445, 734426, 934724, 1049180, 1168405, 1352890, 1468852, 1836065, 2336810, 2570491, 2705780, 3672130, 4673620, 5140982, 7344260, 10281964, 12852455, 25704910, 51409820]

約数ペア:

[(1, 51409820), (2, 25704910), (4, 12852455), (5, 10281964), (7, 7344260), (10, 5140982), (11, 4673620), (14, 3672130), (19, 2705780), (20, 2570491), (22, 2336810), (28, 1836065), (35, 1468852), (38, 1352890), (44, 1168405), (49, 1049180), (55, 934724), (70, 734426), (76, 676445), (77, 667660), (95, 541156), (98, 524590), (110, 467362), (133, 386540), (140, 367213), (154, 333830), (190, 270578), (196, 262295), (209, 245980), (220, 233681), (245, 209836), (251, 204820), (266, 193270), (308, 166915), (380, 135289), (385, 133532), (418, 122990), (490, 104918), (502, 102410), (532, 96635), (539, 95380), (665, 77308), (770, 66766), (836, 61495), (931, 55220), (980, 52459), (1004, 51205), (1045, 49196), (1078, 47690), (1255, 40964), (1330, 38654), (1463, 35140), (1540, 33383), (1757, 29260), (1862, 27610), (2090, 24598), (2156, 23845), (2510, 20482), (2660, 19327), (2695, 19076), (2761, 18620), (2926, 17570), (3514, 14630), (3724, 13805), (4180, 12299), (4655, 11044), (4769, 10780), (5020, 10241), (5390, 9538), (5522, 9310), (5852, 8785), (7028, 7315)]