51363280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:332

約数の個数: 80

約数和(自身を含む): 124992000

約数和(自身を除く): 73628720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 139, 149, 155, 248, 278, 298, 310, 496, 556, 596, 620, 695, 745, 1112, 1192, 1240, 1390, 1490, 2224, 2384, 2480, 2780, 2980, 4309, 4619, 5560, 5960, 8618, 9238, 11120, 11920, 17236, 18476, 20711, 21545, 23095, 34472, 36952, 41422, 43090, 46190, 68944, 73904, 82844, 86180, 92380, 103555, 165688, 172360, 184760, 207110, 331376, 344720, 369520, 414220, 642041, 828440, 1284082, 1656880, 2568164, 3210205, 5136328, 6420410, 10272656, 12840820, 25681640, 51363280]

約数ペア:

[(1, 51363280), (2, 25681640), (4, 12840820), (5, 10272656), (8, 6420410), (10, 5136328), (16, 3210205), (20, 2568164), (31, 1656880), (40, 1284082), (62, 828440), (80, 642041), (124, 414220), (139, 369520), (149, 344720), (155, 331376), (248, 207110), (278, 184760), (298, 172360), (310, 165688), (496, 103555), (556, 92380), (596, 86180), (620, 82844), (695, 73904), (745, 68944), (1112, 46190), (1192, 43090), (1240, 41422), (1390, 36952), (1490, 34472), (2224, 23095), (2384, 21545), (2480, 20711), (2780, 18476), (2980, 17236), (4309, 11920), (4619, 11120), (5560, 9238), (5960, 8618)]