2637440

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1$

素因数の和:349

約数の個数: 64

約数和(自身を含む): 6811560

約数和(自身を除く): 4174120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 317, 320, 416, 520, 634, 640, 832, 1040, 1268, 1585, 1664, 2080, 2536, 3170, 4121, 4160, 5072, 6340, 8242, 8320, 10144, 12680, 16484, 20288, 20605, 25360, 32968, 40576, 41210, 50720, 65936, 82420, 101440, 131872, 164840, 202880, 263744, 329680, 527488, 659360, 1318720, 2637440]

約数ペア:

[(1, 2637440), (2, 1318720), (4, 659360), (5, 527488), (8, 329680), (10, 263744), (13, 202880), (16, 164840), (20, 131872), (26, 101440), (32, 82420), (40, 65936), (52, 50720), (64, 41210), (65, 40576), (80, 32968), (104, 25360), (128, 20605), (130, 20288), (160, 16484), (208, 12680), (260, 10144), (317, 8320), (320, 8242), (416, 6340), (520, 5072), (634, 4160), (640, 4121), (832, 3170), (1040, 2536), (1268, 2080), (1585, 1664)]