664017920

素因数分解:

$2^{10}\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2447}}^1$

素因数の和:2525

約数の個数: 88

約数和(自身を含む): 1623582144

約数和(自身を除く): 959564224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 128, 160, 212, 256, 265, 320, 424, 512, 530, 640, 848, 1024, 1060, 1280, 1696, 2120, 2447, 2560, 3392, 4240, 4894, 5120, 6784, 8480, 9788, 12235, 13568, 16960, 19576, 24470, 27136, 33920, 39152, 48940, 54272, 67840, 78304, 97880, 129691, 135680, 156608, 195760, 259382, 271360, 313216, 391520, 518764, 626432, 648455, 783040, 1037528, 1252864, 1296910, 1566080, 2075056, 2505728, 2593820, 3132160, 4150112, 5187640, 6264320, 8300224, 10375280, 12528640, 16600448, 20750560, 33200896, 41501120, 66401792, 83002240, 132803584, 166004480, 332008960, 664017920]

約数ペア:

[(1, 664017920), (2, 332008960), (4, 166004480), (5, 132803584), (8, 83002240), (10, 66401792), (16, 41501120), (20, 33200896), (32, 20750560), (40, 16600448), (53, 12528640), (64, 10375280), (80, 8300224), (106, 6264320), (128, 5187640), (160, 4150112), (212, 3132160), (256, 2593820), (265, 2505728), (320, 2075056), (424, 1566080), (512, 1296910), (530, 1252864), (640, 1037528), (848, 783040), (1024, 648455), (1060, 626432), (1280, 518764), (1696, 391520), (2120, 313216), (2447, 271360), (2560, 259382), (3392, 195760), (4240, 156608), (4894, 135680), (5120, 129691), (6784, 97880), (8480, 78304), (9788, 67840), (12235, 54272), (13568, 48940), (16960, 39152), (19576, 33920), (24470, 27136)]