2015400400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{387577}}^1$

素因数の和:387608

約数の個数: 60

約数和(自身を含む): 5214474412

約数和(自身を除く): 3199074012

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 387577, 775154, 1550308, 1937885, 3100616, 3875770, 5038501, 6201232, 7751540, 9689425, 10077002, 15503080, 19378850, 20154004, 25192505, 31006160, 38757700, 40308008, 50385010, 77515400, 80616016, 100770020, 125962525, 155030800, 201540040, 251925050, 403080080, 503850100, 1007700200, 2015400400]

約数ペア:

[(1, 2015400400), (2, 1007700200), (4, 503850100), (5, 403080080), (8, 251925050), (10, 201540040), (13, 155030800), (16, 125962525), (20, 100770020), (25, 80616016), (26, 77515400), (40, 50385010), (50, 40308008), (52, 38757700), (65, 31006160), (80, 25192505), (100, 20154004), (104, 19378850), (130, 15503080), (200, 10077002), (208, 9689425), (260, 7751540), (325, 6201232), (400, 5038501), (520, 3875770), (650, 3100616), (1040, 1937885), (1300, 1550308), (2600, 775154), (5200, 387577)]