261032480

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{557}}^1$

素因数の和:702

約数の個数: 96

約数和(自身を含む): 645427440

約数和(自身を除く): 384394960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 101, 116, 145, 160, 202, 232, 290, 404, 464, 505, 557, 580, 808, 928, 1010, 1114, 1160, 1616, 2020, 2228, 2320, 2785, 2929, 3232, 4040, 4456, 4640, 5570, 5858, 8080, 8912, 11140, 11716, 14645, 16153, 16160, 17824, 22280, 23432, 29290, 32306, 44560, 46864, 56257, 58580, 64612, 80765, 89120, 93728, 112514, 117160, 129224, 161530, 225028, 234320, 258448, 281285, 323060, 450056, 468640, 516896, 562570, 646120, 900112, 1125140, 1292240, 1631453, 1800224, 2250280, 2584480, 3262906, 4500560, 6525812, 8157265, 9001120, 13051624, 16314530, 26103248, 32629060, 52206496, 65258120, 130516240, 261032480]

約数ペア:

[(1, 261032480), (2, 130516240), (4, 65258120), (5, 52206496), (8, 32629060), (10, 26103248), (16, 16314530), (20, 13051624), (29, 9001120), (32, 8157265), (40, 6525812), (58, 4500560), (80, 3262906), (101, 2584480), (116, 2250280), (145, 1800224), (160, 1631453), (202, 1292240), (232, 1125140), (290, 900112), (404, 646120), (464, 562570), (505, 516896), (557, 468640), (580, 450056), (808, 323060), (928, 281285), (1010, 258448), (1114, 234320), (1160, 225028), (1616, 161530), (2020, 129224), (2228, 117160), (2320, 112514), (2785, 93728), (2929, 89120), (3232, 80765), (4040, 64612), (4456, 58580), (4640, 56257), (5570, 46864), (5858, 44560), (8080, 32306), (8912, 29290), (11140, 23432), (11716, 22280), (14645, 17824), (16153, 16160)]