16212580

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 35216496

約数和(自身を除く): 19003916

約数列:

[1, 2, 4, 5, 10, 20, 61, 97, 122, 137, 194, 244, 274, 305, 388, 485, 548, 610, 685, 970, 1220, 1370, 1940, 2740, 5917, 8357, 11834, 13289, 16714, 23668, 26578, 29585, 33428, 41785, 53156, 59170, 66445, 83570, 118340, 132890, 167140, 265780, 810629, 1621258, 3242516, 4053145, 8106290, 16212580]

約数ペア:

[(1, 16212580), (2, 8106290), (4, 4053145), (5, 3242516), (10, 1621258), (20, 810629), (61, 265780), (97, 167140), (122, 132890), (137, 118340), (194, 83570), (244, 66445), (274, 59170), (305, 53156), (388, 41785), (485, 33428), (548, 29585), (610, 26578), (685, 23668), (970, 16714), (1220, 13289), (1370, 11834), (1940, 8357), (2740, 5917)]