664388466

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{251}}^1$

素因数の和:420

約数の個数: 128

約数和(自身を含む): 1672151040

約数和(自身を除く): 1007762574

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 31, 38, 42, 57, 62, 93, 107, 114, 133, 186, 214, 217, 251, 266, 321, 399, 434, 502, 589, 642, 651, 749, 753, 798, 1178, 1302, 1498, 1506, 1757, 1767, 2033, 2247, 3317, 3514, 3534, 4066, 4123, 4494, 4769, 5271, 6099, 6634, 7781, 8246, 9538, 9951, 10542, 12198, 12369, 14231, 14307, 15562, 19902, 23219, 23343, 24738, 26857, 28462, 28614, 33383, 42693, 46438, 46686, 53714, 54467, 63023, 66766, 69657, 80571, 85386, 100149, 108934, 126046, 139314, 147839, 161142, 163401, 187999, 189069, 200298, 295678, 326802, 375998, 378138, 441161, 443517, 510283, 563997, 832567, 882322, 887034, 1020566, 1034873, 1127994, 1323483, 1530849, 1665134, 2069746, 2497701, 2646966, 3061698, 3104619, 3571981, 4995402, 5827969, 6209238, 7143962, 10715943, 11655938, 15818773, 17483907, 21431886, 31637546, 34967814, 47456319, 94912638, 110731411, 221462822, 332194233, 664388466]

約数ペア:

[(1, 664388466), (2, 332194233), (3, 221462822), (6, 110731411), (7, 94912638), (14, 47456319), (19, 34967814), (21, 31637546), (31, 21431886), (38, 17483907), (42, 15818773), (57, 11655938), (62, 10715943), (93, 7143962), (107, 6209238), (114, 5827969), (133, 4995402), (186, 3571981), (214, 3104619), (217, 3061698), (251, 2646966), (266, 2497701), (321, 2069746), (399, 1665134), (434, 1530849), (502, 1323483), (589, 1127994), (642, 1034873), (651, 1020566), (749, 887034), (753, 882322), (798, 832567), (1178, 563997), (1302, 510283), (1498, 443517), (1506, 441161), (1757, 378138), (1767, 375998), (2033, 326802), (2247, 295678), (3317, 200298), (3514, 189069), (3534, 187999), (4066, 163401), (4123, 161142), (4494, 147839), (4769, 139314), (5271, 126046), (6099, 108934), (6634, 100149), (7781, 85386), (8246, 80571), (9538, 69657), (9951, 66766), (10542, 63023), (12198, 54467), (12369, 53714), (14231, 46686), (14307, 46438), (15562, 42693), (19902, 33383), (23219, 28614), (23343, 28462), (24738, 26857)]