7711720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:242

約数の個数: 64

約数和(自身を含む): 18648000

約数和(自身を除く): 10936280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 73, 76, 95, 139, 146, 152, 190, 278, 292, 365, 380, 556, 584, 695, 730, 760, 1112, 1387, 1390, 1460, 2641, 2774, 2780, 2920, 5282, 5548, 5560, 6935, 10147, 10564, 11096, 13205, 13870, 20294, 21128, 26410, 27740, 40588, 50735, 52820, 55480, 81176, 101470, 105640, 192793, 202940, 385586, 405880, 771172, 963965, 1542344, 1927930, 3855860, 7711720]

約数ペア:

[(1, 7711720), (2, 3855860), (4, 1927930), (5, 1542344), (8, 963965), (10, 771172), (19, 405880), (20, 385586), (38, 202940), (40, 192793), (73, 105640), (76, 101470), (95, 81176), (139, 55480), (146, 52820), (152, 50735), (190, 40588), (278, 27740), (292, 26410), (365, 21128), (380, 20294), (556, 13870), (584, 13205), (695, 11096), (730, 10564), (760, 10147), (1112, 6935), (1387, 5560), (1390, 5548), (1460, 5282), (2641, 2920), (2774, 2780)]