135654320

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{8521}}^1$

素因数の和:8733

約数の個数: 40

約数和(自身を含む): 317018400

約数和(自身を除く): 181364080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1990, 3184, 3980, 7960, 8521, 15920, 17042, 34084, 42605, 68168, 85210, 136336, 170420, 340840, 681680, 1695679, 3391358, 6782716, 8478395, 13565432, 16956790, 27130864, 33913580, 67827160, 135654320]

約数ペア:

[(1, 135654320), (2, 67827160), (4, 33913580), (5, 27130864), (8, 16956790), (10, 13565432), (16, 8478395), (20, 6782716), (40, 3391358), (80, 1695679), (199, 681680), (398, 340840), (796, 170420), (995, 136336), (1592, 85210), (1990, 68168), (3184, 42605), (3980, 34084), (7960, 17042), (8521, 15920)]