20650588

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{643}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 43853824

約数和(自身を除く): 23203236

約数列:

[1, 2, 4, 7, 14, 28, 31, 37, 62, 74, 124, 148, 217, 259, 434, 518, 643, 868, 1036, 1147, 1286, 2294, 2572, 4501, 4588, 8029, 9002, 16058, 18004, 19933, 23791, 32116, 39866, 47582, 79732, 95164, 139531, 166537, 279062, 333074, 558124, 666148, 737521, 1475042, 2950084, 5162647, 10325294, 20650588]

約数ペア:

[(1, 20650588), (2, 10325294), (4, 5162647), (7, 2950084), (14, 1475042), (28, 737521), (31, 666148), (37, 558124), (62, 333074), (74, 279062), (124, 166537), (148, 139531), (217, 95164), (259, 79732), (434, 47582), (518, 39866), (643, 32116), (868, 23791), (1036, 19933), (1147, 18004), (1286, 16058), (2294, 9002), (2572, 8029), (4501, 4588)]