39979280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{251}}^1$

素因数の和:456

約数の個数: 80

約数和(自身を含む): 102368448

約数和(自身を除く): 62389168

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 181, 220, 251, 362, 440, 502, 724, 880, 905, 1004, 1255, 1448, 1810, 1991, 2008, 2510, 2761, 2896, 3620, 3982, 4016, 5020, 5522, 7240, 7964, 9955, 10040, 11044, 13805, 14480, 15928, 19910, 20080, 22088, 27610, 31856, 39820, 44176, 45431, 55220, 79640, 90862, 110440, 159280, 181724, 220880, 227155, 363448, 454310, 499741, 726896, 908620, 999482, 1817240, 1998964, 2498705, 3634480, 3997928, 4997410, 7995856, 9994820, 19989640, 39979280]

約数ペア:

[(1, 39979280), (2, 19989640), (4, 9994820), (5, 7995856), (8, 4997410), (10, 3997928), (11, 3634480), (16, 2498705), (20, 1998964), (22, 1817240), (40, 999482), (44, 908620), (55, 726896), (80, 499741), (88, 454310), (110, 363448), (176, 227155), (181, 220880), (220, 181724), (251, 159280), (362, 110440), (440, 90862), (502, 79640), (724, 55220), (880, 45431), (905, 44176), (1004, 39820), (1255, 31856), (1448, 27610), (1810, 22088), (1991, 20080), (2008, 19910), (2510, 15928), (2761, 14480), (2896, 13805), (3620, 11044), (3982, 10040), (4016, 9955), (5020, 7964), (5522, 7240)]