649213280

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{213557}}^1$

素因数の和:213591

約数の個数: 48

約数和(自身を含む): 1614498480

約数和(自身を除く): 965285200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 213557, 427114, 854228, 1067785, 1708456, 2135570, 3416912, 4057583, 4271140, 6833824, 8115166, 8542280, 16230332, 17084560, 20287915, 32460664, 34169120, 40575830, 64921328, 81151660, 129842656, 162303320, 324606640, 649213280]

約数ペア:

[(1, 649213280), (2, 324606640), (4, 162303320), (5, 129842656), (8, 81151660), (10, 64921328), (16, 40575830), (19, 34169120), (20, 32460664), (32, 20287915), (38, 17084560), (40, 16230332), (76, 8542280), (80, 8115166), (95, 6833824), (152, 4271140), (160, 4057583), (190, 3416912), (304, 2135570), (380, 1708456), (608, 1067785), (760, 854228), (1520, 427114), (3040, 213557)]