71304220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1973}}^1$

素因数の和:2134

約数の個数: 48

約数和(自身を含む): 162499680

約数和(自身を除く): 91195460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 260, 278, 556, 695, 1390, 1807, 1973, 2780, 3614, 3946, 7228, 7892, 9035, 9865, 18070, 19730, 25649, 36140, 39460, 51298, 102596, 128245, 256490, 274247, 512980, 548494, 1096988, 1371235, 2742470, 3565211, 5484940, 7130422, 14260844, 17826055, 35652110, 71304220]

約数ペア:

[(1, 71304220), (2, 35652110), (4, 17826055), (5, 14260844), (10, 7130422), (13, 5484940), (20, 3565211), (26, 2742470), (52, 1371235), (65, 1096988), (130, 548494), (139, 512980), (260, 274247), (278, 256490), (556, 128245), (695, 102596), (1390, 51298), (1807, 39460), (1973, 36140), (2780, 25649), (3614, 19730), (3946, 18070), (7228, 9865), (7892, 9035)]