400077904

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{373207}}^1$

素因数の和:373282

約数の個数: 20

約数和(自身を含む): 786722464

約数和(自身を除く): 386644560

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 373207, 746414, 1492828, 2985656, 5971312, 25004869, 50009738, 100019476, 200038952, 400077904]

約数ペア:

[(1, 400077904), (2, 200038952), (4, 100019476), (8, 50009738), (16, 25004869), (67, 5971312), (134, 2985656), (268, 1492828), (536, 746414), (1072, 373207)]