79684520

素因数分解:

$2^3\times 5^1\times {\mathrm{647}}^1\times {\mathrm{3079}}^1$

素因数の和:3737

約数の個数: 32

約数和(自身を含む): 179625600

約数和(自身を除く): 99941080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 647, 1294, 2588, 3079, 3235, 5176, 6158, 6470, 12316, 12940, 15395, 24632, 25880, 30790, 61580, 123160, 1992113, 3984226, 7968452, 9960565, 15936904, 19921130, 39842260, 79684520]

約数ペア:

[(1, 79684520), (2, 39842260), (4, 19921130), (5, 15936904), (8, 9960565), (10, 7968452), (20, 3984226), (40, 1992113), (647, 123160), (1294, 61580), (2588, 30790), (3079, 25880), (3235, 24632), (5176, 15395), (6158, 12940), (6470, 12316)]