12842440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24697}}^1$

素因数の和:24721

約数の個数: 32

約数和(自身を含む): 31119480

約数和(自身を除く): 18277040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 24697, 49394, 98788, 123485, 197576, 246970, 321061, 493940, 642122, 987880, 1284244, 1605305, 2568488, 3210610, 6421220, 12842440]

約数ペア:

[(1, 12842440), (2, 6421220), (4, 3210610), (5, 2568488), (8, 1605305), (10, 1284244), (13, 987880), (20, 642122), (26, 493940), (40, 321061), (52, 246970), (65, 197576), (104, 123485), (130, 98788), (260, 49394), (520, 24697)]