72070420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{2131}}^1$

素因数の和:2248

約数の個数: 48

約数和(自身を含む): 161179200

約数和(自身を除く): 89108780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 890, 1691, 1780, 2131, 3382, 4262, 6764, 8455, 8524, 10655, 16910, 21310, 33820, 40489, 42620, 80978, 161956, 189659, 202445, 379318, 404890, 758636, 809780, 948295, 1896590, 3603521, 3793180, 7207042, 14414084, 18017605, 36035210, 72070420]

約数ペア:

[(1, 72070420), (2, 36035210), (4, 18017605), (5, 14414084), (10, 7207042), (19, 3793180), (20, 3603521), (38, 1896590), (76, 948295), (89, 809780), (95, 758636), (178, 404890), (190, 379318), (356, 202445), (380, 189659), (445, 161956), (890, 80978), (1691, 42620), (1780, 40489), (2131, 33820), (3382, 21310), (4262, 16910), (6764, 10655), (8455, 8524)]