388639615

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 597445632

約数和(自身を除く): 208806017

約数列:

[1, 5, 7, 13, 35, 41, 65, 83, 91, 205, 251, 287, 415, 455, 533, 581, 1079, 1255, 1435, 1757, 2665, 2905, 3263, 3403, 3731, 5395, 7553, 8785, 10291, 16315, 17015, 18655, 20833, 22841, 23821, 37765, 44239, 51455, 72037, 104165, 114205, 119105, 133783, 145831, 221195, 270829, 309673, 360185, 668915, 729155, 854153, 936481, 1354145, 1548365, 1895803, 4270765, 4682405, 5979071, 9479015, 11103989, 29895355, 55519945, 77727923, 388639615]

約数ペア:

[(1, 388639615), (5, 77727923), (7, 55519945), (13, 29895355), (35, 11103989), (41, 9479015), (65, 5979071), (83, 4682405), (91, 4270765), (205, 1895803), (251, 1548365), (287, 1354145), (415, 936481), (455, 854153), (533, 729155), (581, 668915), (1079, 360185), (1255, 309673), (1435, 270829), (1757, 221195), (2665, 145831), (2905, 133783), (3263, 119105), (3403, 114205), (3731, 104165), (5395, 72037), (7553, 51455), (8785, 44239), (10291, 37765), (16315, 23821), (17015, 22841), (18655, 20833)]