19436820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24919}}^1$

素因数の和:24944

約数の個数: 48

約数和(自身を含む): 58611840

約数和(自身を除く): 39175020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 24919, 49838, 74757, 99676, 124595, 149514, 249190, 299028, 323947, 373785, 498380, 647894, 747570, 971841, 1295788, 1495140, 1619735, 1943682, 3239470, 3887364, 4859205, 6478940, 9718410, 19436820]

約数ペア:

[(1, 19436820), (2, 9718410), (3, 6478940), (4, 4859205), (5, 3887364), (6, 3239470), (10, 1943682), (12, 1619735), (13, 1495140), (15, 1295788), (20, 971841), (26, 747570), (30, 647894), (39, 498380), (52, 373785), (60, 323947), (65, 299028), (78, 249190), (130, 149514), (156, 124595), (195, 99676), (260, 74757), (390, 49838), (780, 24919)]