217790872

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1571}}^1$

素因数の和:1664

約数の個数: 64

約数和(自身を含む): 464808960

約数和(自身を除く): 247018088

約数列:

[1, 2, 4, 8, 13, 26, 31, 43, 52, 62, 86, 104, 124, 172, 248, 344, 403, 559, 806, 1118, 1333, 1571, 1612, 2236, 2666, 3142, 3224, 4472, 5332, 6284, 10664, 12568, 17329, 20423, 34658, 40846, 48701, 67553, 69316, 81692, 97402, 135106, 138632, 163384, 194804, 270212, 389608, 540424, 633113, 878189, 1266226, 1756378, 2094143, 2532452, 3512756, 4188286, 5064904, 7025512, 8376572, 16753144, 27223859, 54447718, 108895436, 217790872]

約数ペア:

[(1, 217790872), (2, 108895436), (4, 54447718), (8, 27223859), (13, 16753144), (26, 8376572), (31, 7025512), (43, 5064904), (52, 4188286), (62, 3512756), (86, 2532452), (104, 2094143), (124, 1756378), (172, 1266226), (248, 878189), (344, 633113), (403, 540424), (559, 389608), (806, 270212), (1118, 194804), (1333, 163384), (1571, 138632), (1612, 135106), (2236, 97402), (2666, 81692), (3142, 69316), (3224, 67553), (4472, 48701), (5332, 40846), (6284, 34658), (10664, 20423), (12568, 17329)]