77958400

素因数分解:

$2^8\times 5^2\times {\mathrm{13}}^1\times {\mathrm{937}}^1$

素因数の和:976

約数の個数: 108

約数和(自身を含む): 208024012

約数和(自身を除く): 130065612

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 200, 208, 256, 260, 320, 325, 400, 416, 520, 640, 650, 800, 832, 937, 1040, 1280, 1300, 1600, 1664, 1874, 2080, 2600, 3200, 3328, 3748, 4160, 4685, 5200, 6400, 7496, 8320, 9370, 10400, 12181, 14992, 16640, 18740, 20800, 23425, 24362, 29984, 37480, 41600, 46850, 48724, 59968, 60905, 74960, 83200, 93700, 97448, 119936, 121810, 149920, 187400, 194896, 239872, 243620, 299840, 304525, 374800, 389792, 487240, 599680, 609050, 749600, 779584, 974480, 1199360, 1218100, 1499200, 1559168, 1948960, 2436200, 2998400, 3118336, 3897920, 4872400, 5996800, 7795840, 9744800, 15591680, 19489600, 38979200, 77958400]

約数ペア:

[(1, 77958400), (2, 38979200), (4, 19489600), (5, 15591680), (8, 9744800), (10, 7795840), (13, 5996800), (16, 4872400), (20, 3897920), (25, 3118336), (26, 2998400), (32, 2436200), (40, 1948960), (50, 1559168), (52, 1499200), (64, 1218100), (65, 1199360), (80, 974480), (100, 779584), (104, 749600), (128, 609050), (130, 599680), (160, 487240), (200, 389792), (208, 374800), (256, 304525), (260, 299840), (320, 243620), (325, 239872), (400, 194896), (416, 187400), (520, 149920), (640, 121810), (650, 119936), (800, 97448), (832, 93700), (937, 83200), (1040, 74960), (1280, 60905), (1300, 59968), (1600, 48724), (1664, 46850), (1874, 41600), (2080, 37480), (2600, 29984), (3200, 24362), (3328, 23425), (3748, 20800), (4160, 18740), (4685, 16640), (5200, 14992), (6400, 12181), (7496, 10400), (8320, 9370)]