42004120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{24421}}^1$

素因数の和:24475

約数の個数: 32

約数和(自身を含む): 96711120

約数和(自身を除く): 54707000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 24421, 48842, 97684, 122105, 195368, 244210, 488420, 976840, 1050103, 2100206, 4200412, 5250515, 8400824, 10501030, 21002060, 42004120]

約数ペア:

[(1, 42004120), (2, 21002060), (4, 10501030), (5, 8400824), (8, 5250515), (10, 4200412), (20, 2100206), (40, 1050103), (43, 976840), (86, 488420), (172, 244210), (215, 195368), (344, 122105), (430, 97684), (860, 48842), (1720, 24421)]