64531480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{643}}^1$

素因数の和:860

約数の個数: 64

約数和(自身を含む): 157419360

約数和(自身を除く): 92887880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 193, 260, 386, 520, 643, 772, 965, 1286, 1544, 1930, 2509, 2572, 3215, 3860, 5018, 5144, 6430, 7720, 8359, 10036, 12545, 12860, 16718, 20072, 25090, 25720, 33436, 41795, 50180, 66872, 83590, 100360, 124099, 167180, 248198, 334360, 496396, 620495, 992792, 1240990, 1613287, 2481980, 3226574, 4963960, 6453148, 8066435, 12906296, 16132870, 32265740, 64531480]

約数ペア:

[(1, 64531480), (2, 32265740), (4, 16132870), (5, 12906296), (8, 8066435), (10, 6453148), (13, 4963960), (20, 3226574), (26, 2481980), (40, 1613287), (52, 1240990), (65, 992792), (104, 620495), (130, 496396), (193, 334360), (260, 248198), (386, 167180), (520, 124099), (643, 100360), (772, 83590), (965, 66872), (1286, 50180), (1544, 41795), (1930, 33436), (2509, 25720), (2572, 25090), (3215, 20072), (3860, 16718), (5018, 12860), (5144, 12545), (6430, 10036), (7720, 8359)]