408047960

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{105167}}^1$

素因数の和:105275

約数の個数: 32

約数和(自身を含む): 927581760

約数和(自身を除く): 519533800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 105167, 210334, 420668, 525835, 841336, 1051670, 2103340, 4206680, 10201199, 20402398, 40804796, 51005995, 81609592, 102011990, 204023980, 408047960]

約数ペア:

[(1, 408047960), (2, 204023980), (4, 102011990), (5, 81609592), (8, 51005995), (10, 40804796), (20, 20402398), (40, 10201199), (97, 4206680), (194, 2103340), (388, 1051670), (485, 841336), (776, 525835), (970, 420668), (1940, 210334), (3880, 105167)]