12663820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{919}}^1$

素因数の和:994

約数の個数: 48

約数和(自身を含む): 29211840

約数和(自身を除く): 16548020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 919, 1060, 1378, 1838, 2756, 3445, 3676, 4595, 6890, 9190, 11947, 13780, 18380, 23894, 47788, 48707, 59735, 97414, 119470, 194828, 238940, 243535, 487070, 633191, 974140, 1266382, 2532764, 3165955, 6331910, 12663820]

約数ペア:

[(1, 12663820), (2, 6331910), (4, 3165955), (5, 2532764), (10, 1266382), (13, 974140), (20, 633191), (26, 487070), (52, 243535), (53, 238940), (65, 194828), (106, 119470), (130, 97414), (212, 59735), (260, 48707), (265, 47788), (530, 23894), (689, 18380), (919, 13780), (1060, 11947), (1378, 9190), (1838, 6890), (2756, 4595), (3445, 3676)]