81728028

素因数分解:

$2^2\times 3^4\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:229

約数の個数: 120

約数和(自身を含む): 225505280

約数和(自身を除く): 143777252

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 31, 36, 54, 62, 79, 81, 93, 103, 108, 124, 158, 162, 186, 206, 237, 279, 309, 316, 324, 372, 412, 474, 558, 618, 711, 837, 927, 948, 1116, 1236, 1422, 1674, 1854, 2133, 2449, 2511, 2781, 2844, 3193, 3348, 3708, 4266, 4898, 5022, 5562, 6386, 6399, 7347, 8137, 8343, 8532, 9579, 9796, 10044, 11124, 12772, 12798, 14694, 16274, 16686, 19158, 22041, 24411, 25596, 28737, 29388, 32548, 33372, 38316, 44082, 48822, 57474, 66123, 73233, 86211, 88164, 97644, 114948, 132246, 146466, 172422, 198369, 219699, 252247, 258633, 264492, 292932, 344844, 396738, 439398, 504494, 517266, 659097, 756741, 793476, 878796, 1008988, 1034532, 1318194, 1513482, 2270223, 2636388, 3026964, 4540446, 6810669, 9080892, 13621338, 20432007, 27242676, 40864014, 81728028]

約数ペア:

[(1, 81728028), (2, 40864014), (3, 27242676), (4, 20432007), (6, 13621338), (9, 9080892), (12, 6810669), (18, 4540446), (27, 3026964), (31, 2636388), (36, 2270223), (54, 1513482), (62, 1318194), (79, 1034532), (81, 1008988), (93, 878796), (103, 793476), (108, 756741), (124, 659097), (158, 517266), (162, 504494), (186, 439398), (206, 396738), (237, 344844), (279, 292932), (309, 264492), (316, 258633), (324, 252247), (372, 219699), (412, 198369), (474, 172422), (558, 146466), (618, 132246), (711, 114948), (837, 97644), (927, 88164), (948, 86211), (1116, 73233), (1236, 66123), (1422, 57474), (1674, 48822), (1854, 44082), (2133, 38316), (2449, 33372), (2511, 32548), (2781, 29388), (2844, 28737), (3193, 25596), (3348, 24411), (3708, 22041), (4266, 19158), (4898, 16686), (5022, 16274), (5562, 14694), (6386, 12798), (6399, 12772), (7347, 11124), (8137, 10044), (8343, 9796), (8532, 9579)]