39975915

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{397}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 75136032

約数和(自身を除く): 35160117

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 137, 147, 245, 397, 411, 685, 735, 959, 1191, 1985, 2055, 2779, 2877, 4795, 5955, 6713, 8337, 13895, 14385, 19453, 20139, 33565, 41685, 54389, 58359, 97265, 100695, 163167, 271945, 291795, 380723, 815835, 1142169, 1903615, 2665061, 5710845, 7995183, 13325305, 39975915]

約数ペア:

[(1, 39975915), (3, 13325305), (5, 7995183), (7, 5710845), (15, 2665061), (21, 1903615), (35, 1142169), (49, 815835), (105, 380723), (137, 291795), (147, 271945), (245, 163167), (397, 100695), (411, 97265), (685, 58359), (735, 54389), (959, 41685), (1191, 33565), (1985, 20139), (2055, 19453), (2779, 14385), (2877, 13895), (4795, 8337), (5955, 6713)]