256514560

素因数分解:

$2^9\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1033}}^1$

素因数の和:1153

約数の個数: 80

約数和(自身を含む): 621975816

約数和(自身を除く): 365461256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 128, 160, 194, 256, 320, 388, 485, 512, 640, 776, 970, 1033, 1280, 1552, 1940, 2066, 2560, 3104, 3880, 4132, 5165, 6208, 7760, 8264, 10330, 12416, 15520, 16528, 20660, 24832, 31040, 33056, 41320, 49664, 62080, 66112, 82640, 100201, 124160, 132224, 165280, 200402, 248320, 264448, 330560, 400804, 501005, 528896, 661120, 801608, 1002010, 1322240, 1603216, 2004020, 2644480, 3206432, 4008040, 6412864, 8016080, 12825728, 16032160, 25651456, 32064320, 51302912, 64128640, 128257280, 256514560]

約数ペア:

[(1, 256514560), (2, 128257280), (4, 64128640), (5, 51302912), (8, 32064320), (10, 25651456), (16, 16032160), (20, 12825728), (32, 8016080), (40, 6412864), (64, 4008040), (80, 3206432), (97, 2644480), (128, 2004020), (160, 1603216), (194, 1322240), (256, 1002010), (320, 801608), (388, 661120), (485, 528896), (512, 501005), (640, 400804), (776, 330560), (970, 264448), (1033, 248320), (1280, 200402), (1552, 165280), (1940, 132224), (2066, 124160), (2560, 100201), (3104, 82640), (3880, 66112), (4132, 62080), (5165, 49664), (6208, 41320), (7760, 33056), (8264, 31040), (10330, 24832), (12416, 20660), (15520, 16528)]