260784440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{1453}}^1$

素因数の和:2112

約数の個数: 64

約数和(自身を含む): 672096960

約数和(自身を除く): 411312520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 641, 1282, 1453, 2564, 2906, 3205, 4487, 5128, 5812, 6410, 7265, 8974, 10171, 11624, 12820, 14530, 17948, 20342, 22435, 25640, 29060, 35896, 40684, 44870, 50855, 58120, 81368, 89740, 101710, 179480, 203420, 406840, 931373, 1862746, 3725492, 4656865, 6519611, 7450984, 9313730, 13039222, 18627460, 26078444, 32598055, 37254920, 52156888, 65196110, 130392220, 260784440]

約数ペア:

[(1, 260784440), (2, 130392220), (4, 65196110), (5, 52156888), (7, 37254920), (8, 32598055), (10, 26078444), (14, 18627460), (20, 13039222), (28, 9313730), (35, 7450984), (40, 6519611), (56, 4656865), (70, 3725492), (140, 1862746), (280, 931373), (641, 406840), (1282, 203420), (1453, 179480), (2564, 101710), (2906, 89740), (3205, 81368), (4487, 58120), (5128, 50855), (5812, 44870), (6410, 40684), (7265, 35896), (8974, 29060), (10171, 25640), (11624, 22435), (12820, 20342), (14530, 17948)]