1991360

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{127}}^1$

素因数の和:158

約数の個数: 84

約数和(自身を含む): 5559552

約数和(自身を除く): 3568192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 127, 140, 160, 196, 224, 245, 254, 280, 320, 392, 448, 490, 508, 560, 635, 784, 889, 980, 1016, 1120, 1270, 1568, 1778, 1960, 2032, 2240, 2540, 3136, 3556, 3920, 4064, 4445, 5080, 6223, 7112, 7840, 8128, 8890, 10160, 12446, 14224, 15680, 17780, 20320, 24892, 28448, 31115, 35560, 40640, 49784, 56896, 62230, 71120, 99568, 124460, 142240, 199136, 248920, 284480, 398272, 497840, 995680, 1991360]

約数ペア:

[(1, 1991360), (2, 995680), (4, 497840), (5, 398272), (7, 284480), (8, 248920), (10, 199136), (14, 142240), (16, 124460), (20, 99568), (28, 71120), (32, 62230), (35, 56896), (40, 49784), (49, 40640), (56, 35560), (64, 31115), (70, 28448), (80, 24892), (98, 20320), (112, 17780), (127, 15680), (140, 14224), (160, 12446), (196, 10160), (224, 8890), (245, 8128), (254, 7840), (280, 7112), (320, 6223), (392, 5080), (448, 4445), (490, 4064), (508, 3920), (560, 3556), (635, 3136), (784, 2540), (889, 2240), (980, 2032), (1016, 1960), (1120, 1778), (1270, 1568)]