18770560

素因数分解:

$2^7\times 5^1\times {\mathrm{139}}^1\times {\mathrm{211}}^1$

素因数の和:369

約数の個数: 64

約数和(自身を含む): 45410400

約数和(自身を除く): 26639840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 139, 160, 211, 278, 320, 422, 556, 640, 695, 844, 1055, 1112, 1390, 1688, 2110, 2224, 2780, 3376, 4220, 4448, 5560, 6752, 8440, 8896, 11120, 13504, 16880, 17792, 22240, 27008, 29329, 33760, 44480, 58658, 67520, 88960, 117316, 135040, 146645, 234632, 293290, 469264, 586580, 938528, 1173160, 1877056, 2346320, 3754112, 4692640, 9385280, 18770560]

約数ペア:

[(1, 18770560), (2, 9385280), (4, 4692640), (5, 3754112), (8, 2346320), (10, 1877056), (16, 1173160), (20, 938528), (32, 586580), (40, 469264), (64, 293290), (80, 234632), (128, 146645), (139, 135040), (160, 117316), (211, 88960), (278, 67520), (320, 58658), (422, 44480), (556, 33760), (640, 29329), (695, 27008), (844, 22240), (1055, 17792), (1112, 16880), (1390, 13504), (1688, 11120), (2110, 8896), (2224, 8440), (2780, 6752), (3376, 5560), (4220, 4448)]