155017640

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{39953}}^1$

素因数の和:40061

約数の個数: 32

約数和(自身を含む): 352394280

約数和(自身を除く): 197376640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 39953, 79906, 159812, 199765, 319624, 399530, 799060, 1598120, 3875441, 7750882, 15501764, 19377205, 31003528, 38754410, 77508820, 155017640]

約数ペア:

[(1, 155017640), (2, 77508820), (4, 38754410), (5, 31003528), (8, 19377205), (10, 15501764), (20, 7750882), (40, 3875441), (97, 1598120), (194, 799060), (388, 399530), (485, 319624), (776, 199765), (970, 159812), (1940, 79906), (3880, 39953)]