26986390

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1\times {\mathrm{199}}^1$

素因数の和:468

約数の個数: 32

約数和(自身を含む): 49766400

約数和(自身を除く): 22780010

約数列:

[1, 2, 5, 10, 71, 142, 191, 199, 355, 382, 398, 710, 955, 995, 1910, 1990, 13561, 14129, 27122, 28258, 38009, 67805, 70645, 76018, 135610, 141290, 190045, 380090, 2698639, 5397278, 13493195, 26986390]

約数ペア:

[(1, 26986390), (2, 13493195), (5, 5397278), (10, 2698639), (71, 380090), (142, 190045), (191, 141290), (199, 135610), (355, 76018), (382, 70645), (398, 67805), (710, 38009), (955, 28258), (995, 27122), (1910, 14129), (1990, 13561)]