28275968

素因数分解:

$2^8\times 7^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:563

約数の個数: 72

約数和(自身を含む): 66716160

約数和(自身を除く): 38440192

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 256, 434, 448, 496, 509, 868, 896, 992, 1018, 1736, 1792, 1984, 2036, 3472, 3563, 3968, 4072, 6944, 7126, 7936, 8144, 13888, 14252, 15779, 16288, 27776, 28504, 31558, 32576, 55552, 57008, 63116, 65152, 110453, 114016, 126232, 130304, 220906, 228032, 252464, 441812, 456064, 504928, 883624, 912128, 1009856, 1767248, 2019712, 3534496, 4039424, 7068992, 14137984, 28275968]

約数ペア:

[(1, 28275968), (2, 14137984), (4, 7068992), (7, 4039424), (8, 3534496), (14, 2019712), (16, 1767248), (28, 1009856), (31, 912128), (32, 883624), (56, 504928), (62, 456064), (64, 441812), (112, 252464), (124, 228032), (128, 220906), (217, 130304), (224, 126232), (248, 114016), (256, 110453), (434, 65152), (448, 63116), (496, 57008), (509, 55552), (868, 32576), (896, 31558), (992, 28504), (1018, 27776), (1736, 16288), (1792, 15779), (1984, 14252), (2036, 13888), (3472, 8144), (3563, 7936), (3968, 7126), (4072, 6944)]