2980720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:122

約数の個数: 80

約数和(自身を含む): 7633440

約数和(自身を除く): 4652720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 37, 38, 40, 53, 74, 76, 80, 95, 106, 148, 152, 185, 190, 212, 265, 296, 304, 370, 380, 424, 530, 592, 703, 740, 760, 848, 1007, 1060, 1406, 1480, 1520, 1961, 2014, 2120, 2812, 2960, 3515, 3922, 4028, 4240, 5035, 5624, 7030, 7844, 8056, 9805, 10070, 11248, 14060, 15688, 16112, 19610, 20140, 28120, 31376, 37259, 39220, 40280, 56240, 74518, 78440, 80560, 149036, 156880, 186295, 298072, 372590, 596144, 745180, 1490360, 2980720]

約数ペア:

[(1, 2980720), (2, 1490360), (4, 745180), (5, 596144), (8, 372590), (10, 298072), (16, 186295), (19, 156880), (20, 149036), (37, 80560), (38, 78440), (40, 74518), (53, 56240), (74, 40280), (76, 39220), (80, 37259), (95, 31376), (106, 28120), (148, 20140), (152, 19610), (185, 16112), (190, 15688), (212, 14060), (265, 11248), (296, 10070), (304, 9805), (370, 8056), (380, 7844), (424, 7030), (530, 5624), (592, 5035), (703, 4240), (740, 4028), (760, 3922), (848, 3515), (1007, 2960), (1060, 2812), (1406, 2120), (1480, 2014), (1520, 1961)]