405178640

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{95561}}^1$

素因数の和:95627

約数の個数: 40

約数和(自身を含む): 959824728

約数和(自身を除く): 554646088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 95561, 191122, 382244, 477805, 764488, 955610, 1528976, 1911220, 3822440, 5064733, 7644880, 10129466, 20258932, 25323665, 40517864, 50647330, 81035728, 101294660, 202589320, 405178640]

約数ペア:

[(1, 405178640), (2, 202589320), (4, 101294660), (5, 81035728), (8, 50647330), (10, 40517864), (16, 25323665), (20, 20258932), (40, 10129466), (53, 7644880), (80, 5064733), (106, 3822440), (212, 1911220), (265, 1528976), (424, 955610), (530, 764488), (848, 477805), (1060, 382244), (2120, 191122), (4240, 95561)]