8045480020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{138191}}^1$

素因数の和:138312

約数の個数: 48

約数和(自身を含む): 17551489536

約数和(自身を除く): 9506009516

約数列:

[1, 2, 4, 5, 10, 20, 41, 71, 82, 142, 164, 205, 284, 355, 410, 710, 820, 1420, 2911, 5822, 11644, 14555, 29110, 58220, 138191, 276382, 552764, 690955, 1381910, 2763820, 5665831, 9811561, 11331662, 19623122, 22663324, 28329155, 39246244, 49057805, 56658310, 98115610, 113316620, 196231220, 402274001, 804548002, 1609096004, 2011370005, 4022740010, 8045480020]

約数ペア:

[(1, 8045480020), (2, 4022740010), (4, 2011370005), (5, 1609096004), (10, 804548002), (20, 402274001), (41, 196231220), (71, 113316620), (82, 98115610), (142, 56658310), (164, 49057805), (205, 39246244), (284, 28329155), (355, 22663324), (410, 19623122), (710, 11331662), (820, 9811561), (1420, 5665831), (2911, 2763820), (5822, 1381910), (11644, 690955), (14555, 552764), (29110, 276382), (58220, 138191)]