3129045760

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{78857}}^1$

素因数の和:78909

約数の個数: 72

約数和(自身を含む): 7736916096

約数和(自身を除く): 4607870336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 19840, 39680, 78857, 157714, 315428, 394285, 630856, 788570, 1261712, 1577140, 2444567, 2523424, 3154280, 4889134, 5046848, 6308560, 9778268, 10093696, 12222835, 12617120, 19556536, 20187392, 24445670, 25234240, 39113072, 48891340, 50468480, 78226144, 97782680, 100936960, 156452288, 195565360, 312904576, 391130720, 625809152, 782261440, 1564522880, 3129045760]

約数ペア:

[(1, 3129045760), (2, 1564522880), (4, 782261440), (5, 625809152), (8, 391130720), (10, 312904576), (16, 195565360), (20, 156452288), (31, 100936960), (32, 97782680), (40, 78226144), (62, 50468480), (64, 48891340), (80, 39113072), (124, 25234240), (128, 24445670), (155, 20187392), (160, 19556536), (248, 12617120), (256, 12222835), (310, 10093696), (320, 9778268), (496, 6308560), (620, 5046848), (640, 4889134), (992, 3154280), (1240, 2523424), (1280, 2444567), (1984, 1577140), (2480, 1261712), (3968, 788570), (4960, 630856), (7936, 394285), (9920, 315428), (19840, 157714), (39680, 78857)]