638120448

素因数分解:

$2^9\times 3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{271}}^1$

素因数の和:375

約数の個数: 240

約数和(自身を含む): 2141458176

約数和(自身を除く): 1503337728

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 64, 72, 73, 84, 96, 112, 126, 128, 144, 146, 168, 192, 219, 224, 252, 256, 271, 288, 292, 336, 384, 438, 448, 504, 511, 512, 542, 576, 584, 657, 672, 768, 813, 876, 896, 1008, 1022, 1084, 1152, 1168, 1314, 1344, 1533, 1536, 1626, 1752, 1792, 1897, 2016, 2044, 2168, 2304, 2336, 2439, 2628, 2688, 3066, 3252, 3504, 3584, 3794, 4032, 4088, 4336, 4599, 4608, 4672, 4878, 5256, 5376, 5691, 6132, 6504, 7008, 7588, 8064, 8176, 8672, 9198, 9344, 9756, 10512, 10752, 11382, 12264, 13008, 14016, 15176, 16128, 16352, 17073, 17344, 18396, 18688, 19512, 19783, 21024, 22764, 24528, 26016, 28032, 30352, 32256, 32704, 34146, 34688, 36792, 37376, 39024, 39566, 42048, 45528, 49056, 52032, 56064, 59349, 60704, 65408, 68292, 69376, 73584, 78048, 79132, 84096, 91056, 98112, 104064, 112128, 118698, 121408, 130816, 136584, 138481, 138752, 147168, 156096, 158264, 168192, 178047, 182112, 196224, 208128, 237396, 242816, 261632, 273168, 276962, 294336, 312192, 316528, 336384, 356094, 364224, 392448, 415443, 416256, 474792, 485632, 546336, 553924, 588672, 624384, 633056, 712188, 728448, 784896, 830886, 949584, 971264, 1092672, 1107848, 1177344, 1246329, 1248768, 1266112, 1424376, 1456896, 1661772, 1899168, 2185344, 2215696, 2354688, 2492658, 2532224, 2848752, 2913792, 3323544, 3798336, 4370688, 4431392, 4985316, 5064448, 5697504, 6647088, 7596672, 8741376, 8862784, 9970632, 10128896, 11395008, 13294176, 15193344, 17725568, 19941264, 22790016, 26588352, 30386688, 35451136, 39882528, 45580032, 53176704, 70902272, 79765056, 91160064, 106353408, 159530112, 212706816, 319060224, 638120448]

約数ペア:

[(1, 638120448), (2, 319060224), (3, 212706816), (4, 159530112), (6, 106353408), (7, 91160064), (8, 79765056), (9, 70902272), (12, 53176704), (14, 45580032), (16, 39882528), (18, 35451136), (21, 30386688), (24, 26588352), (28, 22790016), (32, 19941264), (36, 17725568), (42, 15193344), (48, 13294176), (56, 11395008), (63, 10128896), (64, 9970632), (72, 8862784), (73, 8741376), (84, 7596672), (96, 6647088), (112, 5697504), (126, 5064448), (128, 4985316), (144, 4431392), (146, 4370688), (168, 3798336), (192, 3323544), (219, 2913792), (224, 2848752), (252, 2532224), (256, 2492658), (271, 2354688), (288, 2215696), (292, 2185344), (336, 1899168), (384, 1661772), (438, 1456896), (448, 1424376), (504, 1266112), (511, 1248768), (512, 1246329), (542, 1177344), (576, 1107848), (584, 1092672), (657, 971264), (672, 949584), (768, 830886), (813, 784896), (876, 728448), (896, 712188), (1008, 633056), (1022, 624384), (1084, 588672), (1152, 553924), (1168, 546336), (1314, 485632), (1344, 474792), (1533, 416256), (1536, 415443), (1626, 392448), (1752, 364224), (1792, 356094), (1897, 336384), (2016, 316528), (2044, 312192), (2168, 294336), (2304, 276962), (2336, 273168), (2439, 261632), (2628, 242816), (2688, 237396), (3066, 208128), (3252, 196224), (3504, 182112), (3584, 178047), (3794, 168192), (4032, 158264), (4088, 156096), (4336, 147168), (4599, 138752), (4608, 138481), (4672, 136584), (4878, 130816), (5256, 121408), (5376, 118698), (5691, 112128), (6132, 104064), (6504, 98112), (7008, 91056), (7588, 84096), (8064, 79132), (8176, 78048), (8672, 73584), (9198, 69376), (9344, 68292), (9756, 65408), (10512, 60704), (10752, 59349), (11382, 56064), (12264, 52032), (13008, 49056), (14016, 45528), (15176, 42048), (16128, 39566), (16352, 39024), (17073, 37376), (17344, 36792), (18396, 34688), (18688, 34146), (19512, 32704), (19783, 32256), (21024, 30352), (22764, 28032), (24528, 26016)]