16278340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{457}}^1$

素因数の和:616

約数の個数: 48

約数和(自身を含む): 37163952

約数和(自身を除く): 20885612

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 137, 260, 274, 457, 548, 685, 914, 1370, 1781, 1828, 2285, 2740, 3562, 4570, 5941, 7124, 8905, 9140, 11882, 17810, 23764, 29705, 35620, 59410, 62609, 118820, 125218, 250436, 313045, 626090, 813917, 1252180, 1627834, 3255668, 4069585, 8139170, 16278340]

約数ペア:

[(1, 16278340), (2, 8139170), (4, 4069585), (5, 3255668), (10, 1627834), (13, 1252180), (20, 813917), (26, 626090), (52, 313045), (65, 250436), (130, 125218), (137, 118820), (260, 62609), (274, 59410), (457, 35620), (548, 29705), (685, 23764), (914, 17810), (1370, 11882), (1781, 9140), (1828, 8905), (2285, 7124), (2740, 5941), (3562, 4570)]