156964480

素因数分解:

$2^7\times 5^1\times {\mathrm{245257}}^1$

素因数の和:245276

約数の個数: 32

約数和(自身を含む): 375244740

約数和(自身を除く): 218280260

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 245257, 490514, 981028, 1226285, 1962056, 2452570, 3924112, 4905140, 7848224, 9810280, 15696448, 19620560, 31392896, 39241120, 78482240, 156964480]

約数ペア:

[(1, 156964480), (2, 78482240), (4, 39241120), (5, 31392896), (8, 19620560), (10, 15696448), (16, 9810280), (20, 7848224), (32, 4905140), (40, 3924112), (64, 2452570), (80, 1962056), (128, 1226285), (160, 981028), (320, 490514), (640, 245257)]