31988480

素因数分解:

$2^8\times 5^1\times {\mathrm{67}}^1\times {\mathrm{373}}^1$

素因数の和:461

約数の個数: 72

約数和(自身を含む): 77974512

約数和(自身を除く): 45986032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 128, 134, 160, 256, 268, 320, 335, 373, 536, 640, 670, 746, 1072, 1280, 1340, 1492, 1865, 2144, 2680, 2984, 3730, 4288, 5360, 5968, 7460, 8576, 10720, 11936, 14920, 17152, 21440, 23872, 24991, 29840, 42880, 47744, 49982, 59680, 85760, 95488, 99964, 119360, 124955, 199928, 238720, 249910, 399856, 477440, 499820, 799712, 999640, 1599424, 1999280, 3198848, 3998560, 6397696, 7997120, 15994240, 31988480]

約数ペア:

[(1, 31988480), (2, 15994240), (4, 7997120), (5, 6397696), (8, 3998560), (10, 3198848), (16, 1999280), (20, 1599424), (32, 999640), (40, 799712), (64, 499820), (67, 477440), (80, 399856), (128, 249910), (134, 238720), (160, 199928), (256, 124955), (268, 119360), (320, 99964), (335, 95488), (373, 85760), (536, 59680), (640, 49982), (670, 47744), (746, 42880), (1072, 29840), (1280, 24991), (1340, 23872), (1492, 21440), (1865, 17152), (2144, 14920), (2680, 11936), (2984, 10720), (3730, 8576), (4288, 7460), (5360, 5968)]