156864520

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{40429}}^1$

素因数の和:40537

約数の個数: 32

約数和(自身を含む): 356592600

約数和(自身を除く): 199728080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 40429, 80858, 161716, 202145, 323432, 404290, 808580, 1617160, 3921613, 7843226, 15686452, 19608065, 31372904, 39216130, 78432260, 156864520]

約数ペア:

[(1, 156864520), (2, 78432260), (4, 39216130), (5, 31372904), (8, 19608065), (10, 15686452), (20, 7843226), (40, 3921613), (97, 1617160), (194, 808580), (388, 404290), (485, 323432), (776, 202145), (970, 161716), (1940, 80858), (3880, 40429)]