90704680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{977}}^1$

素因数の和:1210

約数の個数: 64

約数和(自身を含む): 223922880

約数和(自身を除く): 133218200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 211, 220, 422, 440, 844, 977, 1055, 1688, 1954, 2110, 2321, 3908, 4220, 4642, 4885, 7816, 8440, 9284, 9770, 10747, 11605, 18568, 19540, 21494, 23210, 39080, 42988, 46420, 53735, 85976, 92840, 107470, 206147, 214940, 412294, 429880, 824588, 1030735, 1649176, 2061470, 2267617, 4122940, 4535234, 8245880, 9070468, 11338085, 18140936, 22676170, 45352340, 90704680]

約数ペア:

[(1, 90704680), (2, 45352340), (4, 22676170), (5, 18140936), (8, 11338085), (10, 9070468), (11, 8245880), (20, 4535234), (22, 4122940), (40, 2267617), (44, 2061470), (55, 1649176), (88, 1030735), (110, 824588), (211, 429880), (220, 412294), (422, 214940), (440, 206147), (844, 107470), (977, 92840), (1055, 85976), (1688, 53735), (1954, 46420), (2110, 42988), (2321, 39080), (3908, 23210), (4220, 21494), (4642, 19540), (4885, 18568), (7816, 11605), (8440, 10747), (9284, 9770)]