189193984

素因数分解:

$2^8\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1487}}^1$

素因数の和:1581

約数の個数: 72

約数和(自身を含む): 437971968

約数和(自身を除く): 248777984

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 71, 112, 128, 142, 224, 256, 284, 448, 497, 568, 896, 994, 1136, 1487, 1792, 1988, 2272, 2974, 3976, 4544, 5948, 7952, 9088, 10409, 11896, 15904, 18176, 20818, 23792, 31808, 41636, 47584, 63616, 83272, 95168, 105577, 127232, 166544, 190336, 211154, 333088, 380672, 422308, 666176, 739039, 844616, 1332352, 1478078, 1689232, 2664704, 2956156, 3378464, 5912312, 6756928, 11824624, 13513856, 23649248, 27027712, 47298496, 94596992, 189193984]

約数ペア:

[(1, 189193984), (2, 94596992), (4, 47298496), (7, 27027712), (8, 23649248), (14, 13513856), (16, 11824624), (28, 6756928), (32, 5912312), (56, 3378464), (64, 2956156), (71, 2664704), (112, 1689232), (128, 1478078), (142, 1332352), (224, 844616), (256, 739039), (284, 666176), (448, 422308), (497, 380672), (568, 333088), (896, 211154), (994, 190336), (1136, 166544), (1487, 127232), (1792, 105577), (1988, 95168), (2272, 83272), (2974, 63616), (3976, 47584), (4544, 41636), (5948, 31808), (7952, 23792), (9088, 20818), (10409, 18176), (11896, 15904)]