64278004

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:269

約数の個数: 72

約数和(自身を含む): 137894400

約数和(自身を除く): 73616396

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 71, 98, 124, 142, 149, 196, 217, 284, 298, 434, 497, 596, 868, 994, 1043, 1519, 1988, 2086, 2201, 3038, 3479, 4172, 4402, 4619, 6076, 6958, 7301, 8804, 9238, 10579, 13916, 14602, 15407, 18476, 21158, 29204, 30814, 32333, 42316, 61628, 64666, 74053, 107849, 129332, 148106, 215698, 226331, 296212, 327949, 431396, 452662, 518371, 655898, 905324, 1036742, 1311796, 2073484, 2295643, 4591286, 9182572, 16069501, 32139002, 64278004]

約数ペア:

[(1, 64278004), (2, 32139002), (4, 16069501), (7, 9182572), (14, 4591286), (28, 2295643), (31, 2073484), (49, 1311796), (62, 1036742), (71, 905324), (98, 655898), (124, 518371), (142, 452662), (149, 431396), (196, 327949), (217, 296212), (284, 226331), (298, 215698), (434, 148106), (497, 129332), (596, 107849), (868, 74053), (994, 64666), (1043, 61628), (1519, 42316), (1988, 32333), (2086, 30814), (2201, 29204), (3038, 21158), (3479, 18476), (4172, 15407), (4402, 14602), (4619, 13916), (6076, 10579), (6958, 9238), (7301, 8804)]