172904290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{30931}}^1$

素因数の和:30994

約数の個数: 32

約数和(自身を含む): 342974016

約数和(自身を除く): 170069726

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 215, 430, 559, 1118, 2795, 5590, 30931, 61862, 154655, 309310, 402103, 804206, 1330033, 2010515, 2660066, 4021030, 6650165, 13300330, 17290429, 34580858, 86452145, 172904290]

約数ペア:

[(1, 172904290), (2, 86452145), (5, 34580858), (10, 17290429), (13, 13300330), (26, 6650165), (43, 4021030), (65, 2660066), (86, 2010515), (130, 1330033), (215, 804206), (430, 402103), (559, 309310), (1118, 154655), (2795, 61862), (5590, 30931)]