78213760

素因数分解:

$2^7\times 5^1\times {\mathrm{122209}}^1$

素因数の和:122228

約数の個数: 32

約数和(自身を含む): 186981300

約数和(自身を除く): 108767540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 122209, 244418, 488836, 611045, 977672, 1222090, 1955344, 2444180, 3910688, 4888360, 7821376, 9776720, 15642752, 19553440, 39106880, 78213760]

約数ペア:

[(1, 78213760), (2, 39106880), (4, 19553440), (5, 15642752), (8, 9776720), (10, 7821376), (16, 4888360), (20, 3910688), (32, 2444180), (40, 1955344), (64, 1222090), (80, 977672), (128, 611045), (160, 488836), (320, 244418), (640, 122209)]