28181888

素因数分解:

$2^7\times 7^1\times {\mathrm{71}}^1\times {\mathrm{443}}^1$

素因数の和:535

約数の個数: 64

約数和(自身を含む): 65214720

約数和(自身を除く): 37032832

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 71, 112, 128, 142, 224, 284, 443, 448, 497, 568, 886, 896, 994, 1136, 1772, 1988, 2272, 3101, 3544, 3976, 4544, 6202, 7088, 7952, 9088, 12404, 14176, 15904, 24808, 28352, 31453, 31808, 49616, 56704, 62906, 63616, 99232, 125812, 198464, 220171, 251624, 396928, 440342, 503248, 880684, 1006496, 1761368, 2012992, 3522736, 4025984, 7045472, 14090944, 28181888]

約数ペア:

[(1, 28181888), (2, 14090944), (4, 7045472), (7, 4025984), (8, 3522736), (14, 2012992), (16, 1761368), (28, 1006496), (32, 880684), (56, 503248), (64, 440342), (71, 396928), (112, 251624), (128, 220171), (142, 198464), (224, 125812), (284, 99232), (443, 63616), (448, 62906), (497, 56704), (568, 49616), (886, 31808), (896, 31453), (994, 28352), (1136, 24808), (1772, 15904), (1988, 14176), (2272, 12404), (3101, 9088), (3544, 7952), (3976, 7088), (4544, 6202)]