78758540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{13721}}^1$

素因数の和:13778

約数の個数: 48

約数和(自身を含む): 193644864

約数和(自身を除く): 114886324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2870, 5740, 13721, 27442, 54884, 68605, 96047, 137210, 192094, 274420, 384188, 480235, 562561, 960470, 1125122, 1920940, 2250244, 2812805, 3937927, 5625610, 7875854, 11251220, 15751708, 19689635, 39379270, 78758540]

約数ペア:

[(1, 78758540), (2, 39379270), (4, 19689635), (5, 15751708), (7, 11251220), (10, 7875854), (14, 5625610), (20, 3937927), (28, 2812805), (35, 2250244), (41, 1920940), (70, 1125122), (82, 960470), (140, 562561), (164, 480235), (205, 384188), (287, 274420), (410, 192094), (574, 137210), (820, 96047), (1148, 68605), (1435, 54884), (2870, 27442), (5740, 13721)]