64881880

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{4729}}^1$

素因数の和:4761

約数の個数: 64

約数和(自身を含む): 170280000

約数和(自身を除く): 105398120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2744, 3430, 4729, 6860, 9458, 13720, 18916, 23645, 33103, 37832, 47290, 66206, 94580, 132412, 165515, 189160, 231721, 264824, 331030, 463442, 662060, 926884, 1158605, 1324120, 1622047, 1853768, 2317210, 3244094, 4634420, 6488188, 8110235, 9268840, 12976376, 16220470, 32440940, 64881880]

約数ペア:

[(1, 64881880), (2, 32440940), (4, 16220470), (5, 12976376), (7, 9268840), (8, 8110235), (10, 6488188), (14, 4634420), (20, 3244094), (28, 2317210), (35, 1853768), (40, 1622047), (49, 1324120), (56, 1158605), (70, 926884), (98, 662060), (140, 463442), (196, 331030), (245, 264824), (280, 231721), (343, 189160), (392, 165515), (490, 132412), (686, 94580), (980, 66206), (1372, 47290), (1715, 37832), (1960, 33103), (2744, 23645), (3430, 18916), (4729, 13720), (6860, 9458)]