397242800

素因数分解:

$2^4\times 5^2\times {\mathrm{993107}}^1$

素因数の和:993125

約数の個数: 30

約数和(自身を含む): 954376788

約数和(自身を除く): 557133988

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 993107, 1986214, 3972428, 4965535, 7944856, 9931070, 15889712, 19862140, 24827675, 39724280, 49655350, 79448560, 99310700, 198621400, 397242800]

約数ペア:

[(1, 397242800), (2, 198621400), (4, 99310700), (5, 79448560), (8, 49655350), (10, 39724280), (16, 24827675), (20, 19862140), (25, 15889712), (40, 9931070), (50, 7944856), (80, 4965535), (100, 3972428), (200, 1986214), (400, 993107)]