81949505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{269}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 111974400

約数和(自身を除く): 30024895

約数列:

[1, 5, 11, 29, 55, 145, 191, 269, 319, 955, 1345, 1595, 2101, 2959, 5539, 7801, 10505, 14795, 27695, 39005, 51379, 60929, 85811, 256895, 304645, 429055, 565169, 1489991, 2825845, 7449955, 16389901, 81949505]

約数ペア:

[(1, 81949505), (5, 16389901), (11, 7449955), (29, 2825845), (55, 1489991), (145, 565169), (191, 429055), (269, 304645), (319, 256895), (955, 85811), (1345, 60929), (1595, 51379), (2101, 39005), (2959, 27695), (5539, 14795), (7801, 10505)]