163964890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1\times {\mathrm{1319}}^1$

素因数の和:1758

約数の個数: 32

約数和(自身を含む): 305648640

約数和(自身を除く): 141683750

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 401, 802, 1319, 2005, 2638, 4010, 6595, 12431, 13190, 24862, 40889, 62155, 81778, 124310, 204445, 408890, 528919, 1057838, 2644595, 5289190, 16396489, 32792978, 81982445, 163964890]

約数ペア:

[(1, 163964890), (2, 81982445), (5, 32792978), (10, 16396489), (31, 5289190), (62, 2644595), (155, 1057838), (310, 528919), (401, 408890), (802, 204445), (1319, 124310), (2005, 81778), (2638, 62155), (4010, 40889), (6595, 24862), (12431, 13190)]