7880454988

素因数分解:

$2^2\times 7^2\times {\mathrm{97}}^1\times {\mathrm{457}}^1\times {\mathrm{907}}^1$

素因数の和:1479

約数の個数: 72

約数和(自身を含む): 16261114128

約数和(自身を除く): 8380659140

約数列:

[1, 2, 4, 7, 14, 28, 49, 97, 98, 194, 196, 388, 457, 679, 907, 914, 1358, 1814, 1828, 2716, 3199, 3628, 4753, 6349, 6398, 9506, 12698, 12796, 19012, 22393, 25396, 44329, 44443, 44786, 87979, 88658, 88886, 89572, 175958, 177316, 177772, 310303, 351916, 414499, 615853, 620606, 828998, 1231706, 1241212, 1657996, 2172121, 2463412, 2901493, 4310971, 4344242, 5802986, 8621942, 8688484, 11605972, 17243884, 20310451, 40206403, 40620902, 80412806, 81241804, 160825612, 281444821, 562889642, 1125779284, 1970113747, 3940227494, 7880454988]

約数ペア:

[(1, 7880454988), (2, 3940227494), (4, 1970113747), (7, 1125779284), (14, 562889642), (28, 281444821), (49, 160825612), (97, 81241804), (98, 80412806), (194, 40620902), (196, 40206403), (388, 20310451), (457, 17243884), (679, 11605972), (907, 8688484), (914, 8621942), (1358, 5802986), (1814, 4344242), (1828, 4310971), (2716, 2901493), (3199, 2463412), (3628, 2172121), (4753, 1657996), (6349, 1241212), (6398, 1231706), (9506, 828998), (12698, 620606), (12796, 615853), (19012, 414499), (22393, 351916), (25396, 310303), (44329, 177772), (44443, 177316), (44786, 175958), (87979, 89572), (88658, 88886)]