257626880

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{28753}}^1$

素因数の和:28781

約数の個数: 72

約数和(自身を含む): 705278112

約数和(自身を除く): 447651232

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 28753, 57506, 115012, 143765, 201271, 230024, 287530, 402542, 460048, 575060, 805084, 920096, 1006355, 1150120, 1610168, 1840192, 2012710, 2300240, 3220336, 3680384, 4025420, 4600480, 6440672, 7360768, 8050840, 9200960, 12881344, 16101680, 18401920, 25762688, 32203360, 36803840, 51525376, 64406720, 128813440, 257626880]

約数ペア:

[(1, 257626880), (2, 128813440), (4, 64406720), (5, 51525376), (7, 36803840), (8, 32203360), (10, 25762688), (14, 18401920), (16, 16101680), (20, 12881344), (28, 9200960), (32, 8050840), (35, 7360768), (40, 6440672), (56, 4600480), (64, 4025420), (70, 3680384), (80, 3220336), (112, 2300240), (128, 2012710), (140, 1840192), (160, 1610168), (224, 1150120), (256, 1006355), (280, 920096), (320, 805084), (448, 575060), (560, 460048), (640, 402542), (896, 287530), (1120, 230024), (1280, 201271), (1792, 143765), (2240, 115012), (4480, 57506), (8960, 28753)]