12181840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:260

約数の個数: 80

約数和(自身を含む): 31426560

約数和(自身を除く): 19244720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 109, 110, 127, 176, 218, 220, 254, 436, 440, 508, 545, 635, 872, 880, 1016, 1090, 1199, 1270, 1397, 1744, 2032, 2180, 2398, 2540, 2794, 4360, 4796, 5080, 5588, 5995, 6985, 8720, 9592, 10160, 11176, 11990, 13843, 13970, 19184, 22352, 23980, 27686, 27940, 47960, 55372, 55880, 69215, 95920, 110744, 111760, 138430, 152273, 221488, 276860, 304546, 553720, 609092, 761365, 1107440, 1218184, 1522730, 2436368, 3045460, 6090920, 12181840]

約数ペア:

[(1, 12181840), (2, 6090920), (4, 3045460), (5, 2436368), (8, 1522730), (10, 1218184), (11, 1107440), (16, 761365), (20, 609092), (22, 553720), (40, 304546), (44, 276860), (55, 221488), (80, 152273), (88, 138430), (109, 111760), (110, 110744), (127, 95920), (176, 69215), (218, 55880), (220, 55372), (254, 47960), (436, 27940), (440, 27686), (508, 23980), (545, 22352), (635, 19184), (872, 13970), (880, 13843), (1016, 11990), (1090, 11176), (1199, 10160), (1270, 9592), (1397, 8720), (1744, 6985), (2032, 5995), (2180, 5588), (2398, 5080), (2540, 4796), (2794, 4360)]