638541792

素因数分解:

$2^5\times 3^5\times 7^1\times {\mathrm{11731}}^1$

素因数の和:11763

約数の個数: 144

約数和(自身を含む): 2152305792

約数和(自身を除く): 1513764000

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 72, 81, 84, 96, 108, 112, 126, 144, 162, 168, 189, 216, 224, 243, 252, 288, 324, 336, 378, 432, 486, 504, 567, 648, 672, 756, 864, 972, 1008, 1134, 1296, 1512, 1701, 1944, 2016, 2268, 2592, 3024, 3402, 3888, 4536, 6048, 6804, 7776, 9072, 11731, 13608, 18144, 23462, 27216, 35193, 46924, 54432, 70386, 82117, 93848, 105579, 140772, 164234, 187696, 211158, 246351, 281544, 316737, 328468, 375392, 422316, 492702, 563088, 633474, 656936, 739053, 844632, 950211, 985404, 1126176, 1266948, 1313872, 1478106, 1689264, 1900422, 1970808, 2217159, 2533896, 2627744, 2850633, 2956212, 3378528, 3800844, 3941616, 4434318, 5067792, 5701266, 5912424, 6651477, 7601688, 7883232, 8868636, 10135584, 11402532, 11824848, 13302954, 15203376, 17737272, 19954431, 22805064, 23649696, 26605908, 30406752, 35474544, 39908862, 45610128, 53211816, 70949088, 79817724, 91220256, 106423632, 159635448, 212847264, 319270896, 638541792]

約数ペア:

[(1, 638541792), (2, 319270896), (3, 212847264), (4, 159635448), (6, 106423632), (7, 91220256), (8, 79817724), (9, 70949088), (12, 53211816), (14, 45610128), (16, 39908862), (18, 35474544), (21, 30406752), (24, 26605908), (27, 23649696), (28, 22805064), (32, 19954431), (36, 17737272), (42, 15203376), (48, 13302954), (54, 11824848), (56, 11402532), (63, 10135584), (72, 8868636), (81, 7883232), (84, 7601688), (96, 6651477), (108, 5912424), (112, 5701266), (126, 5067792), (144, 4434318), (162, 3941616), (168, 3800844), (189, 3378528), (216, 2956212), (224, 2850633), (243, 2627744), (252, 2533896), (288, 2217159), (324, 1970808), (336, 1900422), (378, 1689264), (432, 1478106), (486, 1313872), (504, 1266948), (567, 1126176), (648, 985404), (672, 950211), (756, 844632), (864, 739053), (972, 656936), (1008, 633474), (1134, 563088), (1296, 492702), (1512, 422316), (1701, 375392), (1944, 328468), (2016, 316737), (2268, 281544), (2592, 246351), (3024, 211158), (3402, 187696), (3888, 164234), (4536, 140772), (6048, 105579), (6804, 93848), (7776, 82117), (9072, 70386), (11731, 54432), (13608, 46924), (18144, 35193), (23462, 27216)]