80087540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{3461}}^1$

素因数の和:3572

約数の個数: 48

約数和(自身を含む): 183209040

約数和(自身を除く): 103121500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 890, 1157, 1780, 2314, 3461, 4628, 5785, 6922, 11570, 13844, 17305, 23140, 34610, 44993, 69220, 89986, 179972, 224965, 308029, 449930, 616058, 899860, 1232116, 1540145, 3080290, 4004377, 6160580, 8008754, 16017508, 20021885, 40043770, 80087540]

約数ペア:

[(1, 80087540), (2, 40043770), (4, 20021885), (5, 16017508), (10, 8008754), (13, 6160580), (20, 4004377), (26, 3080290), (52, 1540145), (65, 1232116), (89, 899860), (130, 616058), (178, 449930), (260, 308029), (356, 224965), (445, 179972), (890, 89986), (1157, 69220), (1780, 44993), (2314, 34610), (3461, 23140), (4628, 17305), (5785, 13844), (6922, 11570)]