15536820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19919}}^1$

素因数の和:19944

約数の個数: 48

約数和(自身を含む): 46851840

約数和(自身を除く): 31315020

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, 19919, 39838, 59757, 79676, 99595, 119514, 199190, 239028, 258947, 298785, 398380, 517894, 597570, 776841, 1035788, 1195140, 1294735, 1553682, 2589470, 3107364, 3884205, 5178940, 7768410, 15536820]

約数ペア:

[(1, 15536820), (2, 7768410), (3, 5178940), (4, 3884205), (5, 3107364), (6, 2589470), (10, 1553682), (12, 1294735), (13, 1195140), (15, 1035788), (20, 776841), (26, 597570), (30, 517894), (39, 398380), (52, 298785), (60, 258947), (65, 239028), (78, 199190), (130, 119514), (156, 99595), (195, 79676), (260, 59757), (390, 39838), (780, 19919)]