131393920

素因数分解:

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

素因数の和:376

約数の個数: 128

約数和(自身を含む): 363283200

約数和(自身を除く): 231889280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 139, 140, 160, 211, 224, 278, 280, 320, 422, 448, 556, 560, 640, 695, 844, 896, 973, 1055, 1112, 1120, 1390, 1477, 1688, 1946, 2110, 2224, 2240, 2780, 2954, 3376, 3892, 4220, 4448, 4480, 4865, 5560, 5908, 6752, 7385, 7784, 8440, 8896, 9730, 11120, 11816, 13504, 14770, 15568, 16880, 17792, 19460, 22240, 23632, 27008, 29329, 29540, 31136, 33760, 38920, 44480, 47264, 58658, 59080, 62272, 67520, 77840, 88960, 94528, 117316, 118160, 124544, 135040, 146645, 155680, 189056, 205303, 234632, 236320, 293290, 311360, 410606, 469264, 472640, 586580, 622720, 821212, 938528, 945280, 1026515, 1173160, 1642424, 1877056, 2053030, 2346320, 3284848, 3754112, 4106060, 4692640, 6569696, 8212120, 9385280, 13139392, 16424240, 18770560, 26278784, 32848480, 65696960, 131393920]

約数ペア:

[(1, 131393920), (2, 65696960), (4, 32848480), (5, 26278784), (7, 18770560), (8, 16424240), (10, 13139392), (14, 9385280), (16, 8212120), (20, 6569696), (28, 4692640), (32, 4106060), (35, 3754112), (40, 3284848), (56, 2346320), (64, 2053030), (70, 1877056), (80, 1642424), (112, 1173160), (128, 1026515), (139, 945280), (140, 938528), (160, 821212), (211, 622720), (224, 586580), (278, 472640), (280, 469264), (320, 410606), (422, 311360), (448, 293290), (556, 236320), (560, 234632), (640, 205303), (695, 189056), (844, 155680), (896, 146645), (973, 135040), (1055, 124544), (1112, 118160), (1120, 117316), (1390, 94528), (1477, 88960), (1688, 77840), (1946, 67520), (2110, 62272), (2224, 59080), (2240, 58658), (2780, 47264), (2954, 44480), (3376, 38920), (3892, 33760), (4220, 31136), (4448, 29540), (4480, 29329), (4865, 27008), (5560, 23632), (5908, 22240), (6752, 19460), (7385, 17792), (7784, 16880), (8440, 15568), (8896, 14770), (9730, 13504), (11120, 11816)]