12388240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9109}}^1$

素因数の和:9139

約数の個数: 40

約数和(自身を含む): 30500280

約数和(自身を除く): 18112040

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 9109, 18218, 36436, 45545, 72872, 91090, 145744, 154853, 182180, 309706, 364360, 619412, 728720, 774265, 1238824, 1548530, 2477648, 3097060, 6194120, 12388240]

約数ペア:

[(1, 12388240), (2, 6194120), (4, 3097060), (5, 2477648), (8, 1548530), (10, 1238824), (16, 774265), (17, 728720), (20, 619412), (34, 364360), (40, 309706), (68, 182180), (80, 154853), (85, 145744), (136, 91090), (170, 72872), (272, 45545), (340, 36436), (680, 18218), (1360, 9109)]