20745264

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1$

素因数の和:119

約数の個数: 120

約数和(自身を含む): 60343360

約数和(自身を除く): 39598096

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 23, 24, 38, 43, 46, 48, 57, 69, 76, 86, 92, 114, 129, 138, 152, 172, 184, 228, 258, 276, 304, 344, 368, 437, 456, 516, 529, 552, 688, 817, 874, 912, 989, 1032, 1058, 1104, 1311, 1587, 1634, 1748, 1978, 2064, 2116, 2451, 2622, 2967, 3174, 3268, 3496, 3956, 4232, 4902, 5244, 5934, 6348, 6536, 6992, 7912, 8464, 9804, 10051, 10488, 11868, 12696, 13072, 15824, 18791, 19608, 20102, 20976, 22747, 23736, 25392, 30153, 37582, 39216, 40204, 45494, 47472, 56373, 60306, 68241, 75164, 80408, 90988, 112746, 120612, 136482, 150328, 160816, 181976, 225492, 241224, 272964, 300656, 363952, 432193, 450984, 482448, 545928, 864386, 901968, 1091856, 1296579, 1728772, 2593158, 3457544, 5186316, 6915088, 10372632, 20745264]

約数ペア:

[(1, 20745264), (2, 10372632), (3, 6915088), (4, 5186316), (6, 3457544), (8, 2593158), (12, 1728772), (16, 1296579), (19, 1091856), (23, 901968), (24, 864386), (38, 545928), (43, 482448), (46, 450984), (48, 432193), (57, 363952), (69, 300656), (76, 272964), (86, 241224), (92, 225492), (114, 181976), (129, 160816), (138, 150328), (152, 136482), (172, 120612), (184, 112746), (228, 90988), (258, 80408), (276, 75164), (304, 68241), (344, 60306), (368, 56373), (437, 47472), (456, 45494), (516, 40204), (529, 39216), (552, 37582), (688, 30153), (817, 25392), (874, 23736), (912, 22747), (989, 20976), (1032, 20102), (1058, 19608), (1104, 18791), (1311, 15824), (1587, 13072), (1634, 12696), (1748, 11868), (1978, 10488), (2064, 10051), (2116, 9804), (2451, 8464), (2622, 7912), (2967, 6992), (3174, 6536), (3268, 6348), (3496, 5934), (3956, 5244), (4232, 4902)]