19697320

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{13309}}^1$

素因数の和:13357

約数の個数: 32

約数和(自身を含む): 45520200

約数和(自身を除く): 25822880

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 13309, 26618, 53236, 66545, 106472, 133090, 266180, 492433, 532360, 984866, 1969732, 2462165, 3939464, 4924330, 9848660, 19697320]

約数ペア:

[(1, 19697320), (2, 9848660), (4, 4924330), (5, 3939464), (8, 2462165), (10, 1969732), (20, 984866), (37, 532360), (40, 492433), (74, 266180), (148, 133090), (185, 106472), (296, 66545), (370, 53236), (740, 26618), (1480, 13309)]