1318720

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1$

素因数の和:347

約数の個数: 56

約数和(自身を含む): 3392424

約数和(自身を除く): 2073704

約数列:

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

約数ペア:

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