1386620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:158

約数の個数: 48

約数和(自身を含む): 3175200

約数和(自身を除く): 1788580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 89, 95, 164, 178, 190, 205, 356, 380, 410, 445, 779, 820, 890, 1558, 1691, 1780, 3116, 3382, 3649, 3895, 6764, 7298, 7790, 8455, 14596, 15580, 16910, 18245, 33820, 36490, 69331, 72980, 138662, 277324, 346655, 693310, 1386620]

約数ペア:

[(1, 1386620), (2, 693310), (4, 346655), (5, 277324), (10, 138662), (19, 72980), (20, 69331), (38, 36490), (41, 33820), (76, 18245), (82, 16910), (89, 15580), (95, 14596), (164, 8455), (178, 7790), (190, 7298), (205, 6764), (356, 3895), (380, 3649), (410, 3382), (445, 3116), (779, 1780), (820, 1691), (890, 1558)]