19497320

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2693}}^1$

素因数の和:2885

約数の個数: 32

約数和(自身を含む): 44127720

約数和(自身を除く): 24630400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 2693, 3620, 5386, 7240, 10772, 13465, 21544, 26930, 53860, 107720, 487433, 974866, 1949732, 2437165, 3899464, 4874330, 9748660, 19497320]

約数ペア:

[(1, 19497320), (2, 9748660), (4, 4874330), (5, 3899464), (8, 2437165), (10, 1949732), (20, 974866), (40, 487433), (181, 107720), (362, 53860), (724, 26930), (905, 21544), (1448, 13465), (1810, 10772), (2693, 7240), (3620, 5386)]