81400500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{18089}}^1$

素因数の和:18114

約数の個数: 72

約数和(自身を含む): 256805640

約数和(自身を除く): 175405140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 500, 750, 900, 1125, 1500, 2250, 4500, 18089, 36178, 54267, 72356, 90445, 108534, 162801, 180890, 217068, 271335, 325602, 361780, 452225, 542670, 651204, 814005, 904450, 1085340, 1356675, 1628010, 1808900, 2261125, 2713350, 3256020, 4070025, 4522250, 5426700, 6783375, 8140050, 9044500, 13566750, 16280100, 20350125, 27133500, 40700250, 81400500]

約数ペア:

[(1, 81400500), (2, 40700250), (3, 27133500), (4, 20350125), (5, 16280100), (6, 13566750), (9, 9044500), (10, 8140050), (12, 6783375), (15, 5426700), (18, 4522250), (20, 4070025), (25, 3256020), (30, 2713350), (36, 2261125), (45, 1808900), (50, 1628010), (60, 1356675), (75, 1085340), (90, 904450), (100, 814005), (125, 651204), (150, 542670), (180, 452225), (225, 361780), (250, 325602), (300, 271335), (375, 217068), (450, 180890), (500, 162801), (750, 108534), (900, 90445), (1125, 72356), (1500, 54267), (2250, 36178), (4500, 18089)]