71981440

素因数分解:

$2^7\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2393}}^1$

素因数の和:2459

約数の個数: 64

約数和(自身を含む): 175815360

約数和(自身を除く): 103833920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 128, 160, 188, 235, 320, 376, 470, 640, 752, 940, 1504, 1880, 2393, 3008, 3760, 4786, 6016, 7520, 9572, 11965, 15040, 19144, 23930, 30080, 38288, 47860, 76576, 95720, 112471, 153152, 191440, 224942, 306304, 382880, 449884, 562355, 765760, 899768, 1124710, 1531520, 1799536, 2249420, 3599072, 4498840, 7198144, 8997680, 14396288, 17995360, 35990720, 71981440]

約数ペア:

[(1, 71981440), (2, 35990720), (4, 17995360), (5, 14396288), (8, 8997680), (10, 7198144), (16, 4498840), (20, 3599072), (32, 2249420), (40, 1799536), (47, 1531520), (64, 1124710), (80, 899768), (94, 765760), (128, 562355), (160, 449884), (188, 382880), (235, 306304), (320, 224942), (376, 191440), (470, 153152), (640, 112471), (752, 95720), (940, 76576), (1504, 47860), (1880, 38288), (2393, 30080), (3008, 23930), (3760, 19144), (4786, 15040), (6016, 11965), (7520, 9572)]