19398340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{74609}}^1$

素因数の和:74631

約数の個数: 24

約数和(自身を含む): 43870680

約数和(自身を除く): 24472340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 74609, 149218, 298436, 373045, 746090, 969917, 1492180, 1939834, 3879668, 4849585, 9699170, 19398340]

約数ペア:

[(1, 19398340), (2, 9699170), (4, 4849585), (5, 3879668), (10, 1939834), (13, 1492180), (20, 969917), (26, 746090), (52, 373045), (65, 298436), (130, 149218), (260, 74609)]