640435516

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{6373}}^1$

素因数の和:6518

約数の個数: 48

約数和(自身を含む): 1329259456

約数和(自身を除く): 688823940

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 97, 148, 194, 259, 388, 518, 679, 1036, 1358, 2716, 3589, 6373, 7178, 12746, 14356, 25123, 25492, 44611, 50246, 89222, 100492, 178444, 235801, 471602, 618181, 943204, 1236362, 1650607, 2472724, 3301214, 4327267, 6602428, 8654534, 17309068, 22872697, 45745394, 91490788, 160108879, 320217758, 640435516]

約数ペア:

[(1, 640435516), (2, 320217758), (4, 160108879), (7, 91490788), (14, 45745394), (28, 22872697), (37, 17309068), (74, 8654534), (97, 6602428), (148, 4327267), (194, 3301214), (259, 2472724), (388, 1650607), (518, 1236362), (679, 943204), (1036, 618181), (1358, 471602), (2716, 235801), (3589, 178444), (6373, 100492), (7178, 89222), (12746, 50246), (14356, 44611), (25123, 25492)]