4440280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8539}}^1$

素因数の和:8563

約数の個数: 32

約数和(自身を含む): 10760400

約数和(自身を除く): 6320120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 8539, 17078, 34156, 42695, 68312, 85390, 111007, 170780, 222014, 341560, 444028, 555035, 888056, 1110070, 2220140, 4440280]

約数ペア:

[(1, 4440280), (2, 2220140), (4, 1110070), (5, 888056), (8, 555035), (10, 444028), (13, 341560), (20, 222014), (26, 170780), (40, 111007), (52, 85390), (65, 68312), (104, 42695), (130, 34156), (260, 17078), (520, 8539)]