19208500

素因数分解:

$2^2\times 5^3\times {\mathrm{41}}^1\times {\mathrm{937}}^1$

素因数の和:997

約数の個数: 48

約数和(自身を含む): 43020432

約数和(自身を除く): 23811932

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 125, 164, 205, 250, 410, 500, 820, 937, 1025, 1874, 2050, 3748, 4100, 4685, 5125, 9370, 10250, 18740, 20500, 23425, 38417, 46850, 76834, 93700, 117125, 153668, 192085, 234250, 384170, 468500, 768340, 960425, 1920850, 3841700, 4802125, 9604250, 19208500]

約数ペア:

[(1, 19208500), (2, 9604250), (4, 4802125), (5, 3841700), (10, 1920850), (20, 960425), (25, 768340), (41, 468500), (50, 384170), (82, 234250), (100, 192085), (125, 153668), (164, 117125), (205, 93700), (250, 76834), (410, 46850), (500, 38417), (820, 23425), (937, 20500), (1025, 18740), (1874, 10250), (2050, 9370), (3748, 5125), (4100, 4685)]