168378340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{647609}}^1$

素因数の和:647631

約数の個数: 24

約数和(自身を含む): 380794680

約数和(自身を除く): 212416340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 647609, 1295218, 2590436, 3238045, 6476090, 8418917, 12952180, 16837834, 33675668, 42094585, 84189170, 168378340]

約数ペア:

[(1, 168378340), (2, 84189170), (4, 42094585), (5, 33675668), (10, 16837834), (13, 12952180), (20, 8418917), (26, 6476090), (52, 3238045), (65, 2590436), (130, 1295218), (260, 647609)]