28775985

素因数分解:

$3^1\times 5^1\times 7^4\times {\mathrm{17}}^1\times {\mathrm{47}}^1$

素因数の和:100

約数の個数: 80

約数和(自身を含む): 58081536

約数和(自身を除く): 29305551

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 47, 49, 51, 85, 105, 119, 141, 147, 235, 245, 255, 329, 343, 357, 595, 705, 735, 799, 833, 987, 1029, 1645, 1715, 1785, 2303, 2397, 2401, 2499, 3995, 4165, 4935, 5145, 5593, 5831, 6909, 7203, 11515, 11985, 12005, 12495, 16121, 16779, 17493, 27965, 29155, 34545, 36015, 39151, 40817, 48363, 80605, 83895, 87465, 112847, 117453, 122451, 195755, 204085, 241815, 274057, 338541, 564235, 587265, 612255, 822171, 1370285, 1692705, 1918399, 4110855, 5755197, 9591995, 28775985]

約数ペア:

[(1, 28775985), (3, 9591995), (5, 5755197), (7, 4110855), (15, 1918399), (17, 1692705), (21, 1370285), (35, 822171), (47, 612255), (49, 587265), (51, 564235), (85, 338541), (105, 274057), (119, 241815), (141, 204085), (147, 195755), (235, 122451), (245, 117453), (255, 112847), (329, 87465), (343, 83895), (357, 80605), (595, 48363), (705, 40817), (735, 39151), (799, 36015), (833, 34545), (987, 29155), (1029, 27965), (1645, 17493), (1715, 16779), (1785, 16121), (2303, 12495), (2397, 12005), (2401, 11985), (2499, 11515), (3995, 7203), (4165, 6909), (4935, 5831), (5145, 5593)]