19393720

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3539}}^1$

素因数の和:3687

約数の個数: 32

約数和(自身を含む): 43966800

約数和(自身を除く): 24573080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 3539, 5480, 7078, 14156, 17695, 28312, 35390, 70780, 141560, 484843, 969686, 1939372, 2424215, 3878744, 4848430, 9696860, 19393720]

約数ペア:

[(1, 19393720), (2, 9696860), (4, 4848430), (5, 3878744), (8, 2424215), (10, 1939372), (20, 969686), (40, 484843), (137, 141560), (274, 70780), (548, 35390), (685, 28312), (1096, 17695), (1370, 14156), (2740, 7078), (3539, 5480)]