79924880

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{20389}}^1$

素因数の和:20416

約数の個数: 60

約数和(自身を含む): 216174780

約数和(自身を除く): 136249900

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 20389, 40778, 81556, 101945, 142723, 163112, 203890, 285446, 326224, 407780, 570892, 713615, 815560, 999061, 1141784, 1427230, 1631120, 1998122, 2283568, 2854460, 3996244, 4995305, 5708920, 7992488, 9990610, 11417840, 15984976, 19981220, 39962440, 79924880]

約数ペア:

[(1, 79924880), (2, 39962440), (4, 19981220), (5, 15984976), (7, 11417840), (8, 9990610), (10, 7992488), (14, 5708920), (16, 4995305), (20, 3996244), (28, 2854460), (35, 2283568), (40, 1998122), (49, 1631120), (56, 1427230), (70, 1141784), (80, 999061), (98, 815560), (112, 713615), (140, 570892), (196, 407780), (245, 326224), (280, 285446), (392, 203890), (490, 163112), (560, 142723), (784, 101945), (980, 81556), (1960, 40778), (3920, 20389)]