7884760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{257}}^1$

素因数の和:340

約数の個数: 64

約数和(自身を含む): 19504800

約数和(自身を除く): 11620040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 59, 65, 104, 118, 130, 236, 257, 260, 295, 472, 514, 520, 590, 767, 1028, 1180, 1285, 1534, 2056, 2360, 2570, 3068, 3341, 3835, 5140, 6136, 6682, 7670, 10280, 13364, 15163, 15340, 16705, 26728, 30326, 30680, 33410, 60652, 66820, 75815, 121304, 133640, 151630, 197119, 303260, 394238, 606520, 788476, 985595, 1576952, 1971190, 3942380, 7884760]

約数ペア:

[(1, 7884760), (2, 3942380), (4, 1971190), (5, 1576952), (8, 985595), (10, 788476), (13, 606520), (20, 394238), (26, 303260), (40, 197119), (52, 151630), (59, 133640), (65, 121304), (104, 75815), (118, 66820), (130, 60652), (236, 33410), (257, 30680), (260, 30326), (295, 26728), (472, 16705), (514, 15340), (520, 15163), (590, 13364), (767, 10280), (1028, 7670), (1180, 6682), (1285, 6136), (1534, 5140), (2056, 3835), (2360, 3341), (2570, 3068)]