126998720

素因数分解:

$2^6\times 5^1\times {\mathrm{396871}}^1$

素因数の和:396888

約数の個数: 28

約数和(自身を含む): 302416464

約数和(自身を除く): 175417744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 396871, 793742, 1587484, 1984355, 3174968, 3968710, 6349936, 7937420, 12699872, 15874840, 25399744, 31749680, 63499360, 126998720]

約数ペア:

[(1, 126998720), (2, 63499360), (4, 31749680), (5, 25399744), (8, 15874840), (10, 12699872), (16, 7937420), (20, 6349936), (32, 3968710), (40, 3174968), (64, 1984355), (80, 1587484), (160, 793742), (320, 396871)]