720477870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{490121}}^1$

素因数の和:490145

約数の個数: 48

約数和(自身を含む): 2011460688

約数和(自身を除く): 1290982818

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 490121, 980242, 1470363, 2450605, 2940726, 3430847, 4901210, 6861694, 7351815, 10292541, 14703630, 17154235, 20585082, 24015929, 34308470, 48031858, 51462705, 72047787, 102925410, 120079645, 144095574, 240159290, 360238935, 720477870]

約数ペア:

[(1, 720477870), (2, 360238935), (3, 240159290), (5, 144095574), (6, 120079645), (7, 102925410), (10, 72047787), (14, 51462705), (15, 48031858), (21, 34308470), (30, 24015929), (35, 20585082), (42, 17154235), (49, 14703630), (70, 10292541), (98, 7351815), (105, 6861694), (147, 4901210), (210, 3430847), (245, 2940726), (294, 2450605), (490, 1470363), (735, 980242), (1470, 490121)]