258880016

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{503}}^1\times {\mathrm{1693}}^1$

素因数の和:2223

約数の個数: 40

約数和(自身を含む): 529341120

約数和(自身を除く): 270461104

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 503, 1006, 1693, 2012, 3386, 4024, 6772, 8048, 9557, 13544, 19114, 27088, 32167, 38228, 64334, 76456, 128668, 152912, 257336, 514672, 851579, 1703158, 3406316, 6812632, 13625264, 16180001, 32360002, 64720004, 129440008, 258880016]

約数ペア:

[(1, 258880016), (2, 129440008), (4, 64720004), (8, 32360002), (16, 16180001), (19, 13625264), (38, 6812632), (76, 3406316), (152, 1703158), (304, 851579), (503, 514672), (1006, 257336), (1693, 152912), (2012, 128668), (3386, 76456), (4024, 64334), (6772, 38228), (8048, 32167), (9557, 27088), (13544, 19114)]