80986990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{2273}}^1$

素因数の和:2796

約数の個数: 32

約数和(自身を含む): 167002560

約数和(自身を除く): 86015570

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 509, 1018, 2273, 2545, 3563, 4546, 5090, 7126, 11365, 15911, 17815, 22730, 31822, 35630, 79555, 159110, 1156957, 2313914, 5784785, 8098699, 11569570, 16197398, 40493495, 80986990]

約数ペア:

[(1, 80986990), (2, 40493495), (5, 16197398), (7, 11569570), (10, 8098699), (14, 5784785), (35, 2313914), (70, 1156957), (509, 159110), (1018, 79555), (2273, 35630), (2545, 31822), (3563, 22730), (4546, 17815), (5090, 15911), (7126, 11365)]