28380128

素因数分解:

$2^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:176

約数の個数: 96

約数和(自身を含む): 67995648

約数和(自身を除く): 39615520

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 61, 62, 67, 112, 122, 124, 134, 217, 224, 244, 248, 268, 427, 434, 469, 488, 496, 536, 854, 868, 938, 976, 992, 1072, 1708, 1736, 1876, 1891, 1952, 2077, 2144, 3416, 3472, 3752, 3782, 4087, 4154, 6832, 6944, 7504, 7564, 8174, 8308, 13237, 13664, 14539, 15008, 15128, 16348, 16616, 26474, 28609, 29078, 30256, 32696, 33232, 52948, 57218, 58156, 60512, 65392, 66464, 105896, 114436, 116312, 126697, 130784, 211792, 228872, 232624, 253394, 423584, 457744, 465248, 506788, 886879, 915488, 1013576, 1773758, 2027152, 3547516, 4054304, 7095032, 14190064, 28380128]

約数ペア:

[(1, 28380128), (2, 14190064), (4, 7095032), (7, 4054304), (8, 3547516), (14, 2027152), (16, 1773758), (28, 1013576), (31, 915488), (32, 886879), (56, 506788), (61, 465248), (62, 457744), (67, 423584), (112, 253394), (122, 232624), (124, 228872), (134, 211792), (217, 130784), (224, 126697), (244, 116312), (248, 114436), (268, 105896), (427, 66464), (434, 65392), (469, 60512), (488, 58156), (496, 57218), (536, 52948), (854, 33232), (868, 32696), (938, 30256), (976, 29078), (992, 28609), (1072, 26474), (1708, 16616), (1736, 16348), (1876, 15128), (1891, 15008), (1952, 14539), (2077, 13664), (2144, 13237), (3416, 8308), (3472, 8174), (3752, 7564), (3782, 7504), (4087, 6944), (4154, 6832)]