11120020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 24385536

約数和(自身を除く): 13265516

約数列:

[1, 2, 4, 5, 10, 20, 41, 71, 82, 142, 164, 191, 205, 284, 355, 382, 410, 710, 764, 820, 955, 1420, 1910, 2911, 3820, 5822, 7831, 11644, 13561, 14555, 15662, 27122, 29110, 31324, 39155, 54244, 58220, 67805, 78310, 135610, 156620, 271220, 556001, 1112002, 2224004, 2780005, 5560010, 11120020]

約数ペア:

[(1, 11120020), (2, 5560010), (4, 2780005), (5, 2224004), (10, 1112002), (20, 556001), (41, 271220), (71, 156620), (82, 135610), (142, 78310), (164, 67805), (191, 58220), (205, 54244), (284, 39155), (355, 31324), (382, 29110), (410, 27122), (710, 15662), (764, 14555), (820, 13561), (955, 11644), (1420, 7831), (1910, 5822), (2911, 3820)]