18731650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{491}}^1$

素因数の和:619

約数の個数: 48

約数和(自身を含む): 40265280

約数和(自身を除く): 21533630

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 109, 175, 218, 350, 491, 545, 763, 982, 1090, 1526, 2455, 2725, 3437, 3815, 4910, 5450, 6874, 7630, 12275, 17185, 19075, 24550, 34370, 38150, 53519, 85925, 107038, 171850, 267595, 374633, 535190, 749266, 1337975, 1873165, 2675950, 3746330, 9365825, 18731650]

約数ペア:

[(1, 18731650), (2, 9365825), (5, 3746330), (7, 2675950), (10, 1873165), (14, 1337975), (25, 749266), (35, 535190), (50, 374633), (70, 267595), (109, 171850), (175, 107038), (218, 85925), (350, 53519), (491, 38150), (545, 34370), (763, 24550), (982, 19075), (1090, 17185), (1526, 12275), (2455, 7630), (2725, 6874), (3437, 5450), (3815, 4910)]