209250680

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{50789}}^1$

素因数の和:50903

約数の個数: 32

約数和(自身を含む): 475394400

約数和(自身を除く): 266143720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 50789, 101578, 203156, 253945, 406312, 507890, 1015780, 2031560, 5231267, 10462534, 20925068, 26156335, 41850136, 52312670, 104625340, 209250680]

約数ペア:

[(1, 209250680), (2, 104625340), (4, 52312670), (5, 41850136), (8, 26156335), (10, 20925068), (20, 10462534), (40, 5231267), (103, 2031560), (206, 1015780), (412, 507890), (515, 406312), (824, 253945), (1030, 203156), (2060, 101578), (4120, 50789)]