400987728

素因数分解:

$2^4\times 3^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2089}}^1$

素因数の和:2177

約数の個数: 120

約数和(自身を含む): 1185916160

約数和(自身を除く): 784928432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 36, 43, 48, 62, 72, 86, 93, 124, 129, 144, 172, 186, 248, 258, 279, 344, 372, 387, 496, 516, 558, 688, 744, 774, 1032, 1116, 1333, 1488, 1548, 2064, 2089, 2232, 2666, 3096, 3999, 4178, 4464, 5332, 6192, 6267, 7998, 8356, 10664, 11997, 12534, 15996, 16712, 18801, 21328, 23994, 25068, 31992, 33424, 37602, 47988, 50136, 63984, 64759, 75204, 89827, 95976, 100272, 129518, 150408, 179654, 191952, 194277, 259036, 269481, 300816, 359308, 388554, 518072, 538962, 582831, 718616, 777108, 808443, 1036144, 1077924, 1165662, 1437232, 1554216, 1616886, 2155848, 2331324, 2784637, 3108432, 3233772, 4311696, 4662648, 5569274, 6467544, 8353911, 9325296, 11138548, 12935088, 16707822, 22277096, 25061733, 33415644, 44554192, 50123466, 66831288, 100246932, 133662576, 200493864, 400987728]

約数ペア:

[(1, 400987728), (2, 200493864), (3, 133662576), (4, 100246932), (6, 66831288), (8, 50123466), (9, 44554192), (12, 33415644), (16, 25061733), (18, 22277096), (24, 16707822), (31, 12935088), (36, 11138548), (43, 9325296), (48, 8353911), (62, 6467544), (72, 5569274), (86, 4662648), (93, 4311696), (124, 3233772), (129, 3108432), (144, 2784637), (172, 2331324), (186, 2155848), (248, 1616886), (258, 1554216), (279, 1437232), (344, 1165662), (372, 1077924), (387, 1036144), (496, 808443), (516, 777108), (558, 718616), (688, 582831), (744, 538962), (774, 518072), (1032, 388554), (1116, 359308), (1333, 300816), (1488, 269481), (1548, 259036), (2064, 194277), (2089, 191952), (2232, 179654), (2666, 150408), (3096, 129518), (3999, 100272), (4178, 95976), (4464, 89827), (5332, 75204), (6192, 64759), (6267, 63984), (7998, 50136), (8356, 47988), (10664, 37602), (11997, 33424), (12534, 31992), (15996, 25068), (16712, 23994), (18801, 21328)]