51271640

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:170

約数の個数: 128

約数和(自身を含む): 139536000

約数和(自身を除く): 88264360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 49, 56, 70, 74, 98, 101, 140, 148, 185, 196, 202, 245, 259, 280, 296, 343, 370, 392, 404, 490, 505, 518, 686, 707, 740, 808, 980, 1010, 1036, 1295, 1372, 1414, 1480, 1715, 1813, 1960, 2020, 2072, 2590, 2744, 2828, 3430, 3535, 3626, 3737, 4040, 4949, 5180, 5656, 6860, 7070, 7252, 7474, 9065, 9898, 10360, 12691, 13720, 14140, 14504, 14948, 18130, 18685, 19796, 24745, 25382, 26159, 28280, 29896, 34643, 36260, 37370, 39592, 49490, 50764, 52318, 63455, 69286, 72520, 74740, 98980, 101528, 104636, 126910, 130795, 138572, 149480, 173215, 183113, 197960, 209272, 253820, 261590, 277144, 346430, 366226, 507640, 523180, 692860, 732452, 915565, 1046360, 1281791, 1385720, 1464904, 1831130, 2563582, 3662260, 5127164, 6408955, 7324520, 10254328, 12817910, 25635820, 51271640]

約数ペア:

[(1, 51271640), (2, 25635820), (4, 12817910), (5, 10254328), (7, 7324520), (8, 6408955), (10, 5127164), (14, 3662260), (20, 2563582), (28, 1831130), (35, 1464904), (37, 1385720), (40, 1281791), (49, 1046360), (56, 915565), (70, 732452), (74, 692860), (98, 523180), (101, 507640), (140, 366226), (148, 346430), (185, 277144), (196, 261590), (202, 253820), (245, 209272), (259, 197960), (280, 183113), (296, 173215), (343, 149480), (370, 138572), (392, 130795), (404, 126910), (490, 104636), (505, 101528), (518, 98980), (686, 74740), (707, 72520), (740, 69286), (808, 63455), (980, 52318), (1010, 50764), (1036, 49490), (1295, 39592), (1372, 37370), (1414, 36260), (1480, 34643), (1715, 29896), (1813, 28280), (1960, 26159), (2020, 25382), (2072, 24745), (2590, 19796), (2744, 18685), (2828, 18130), (3430, 14948), (3535, 14504), (3626, 14140), (3737, 13720), (4040, 12691), (4949, 10360), (5180, 9898), (5656, 9065), (6860, 7474), (7070, 7252)]