13260560

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5347}}^1$

素因数の和:5391

約数の個数: 40

約数和(自身を含む): 31831296

約数和(自身を除く): 18570736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 5347, 10694, 21388, 26735, 42776, 53470, 85552, 106940, 165757, 213880, 331514, 427760, 663028, 828785, 1326056, 1657570, 2652112, 3315140, 6630280, 13260560]

約数ペア:

[(1, 13260560), (2, 6630280), (4, 3315140), (5, 2652112), (8, 1657570), (10, 1326056), (16, 828785), (20, 663028), (31, 427760), (40, 331514), (62, 213880), (80, 165757), (124, 106940), (155, 85552), (248, 53470), (310, 42776), (496, 26735), (620, 21388), (1240, 10694), (2480, 5347)]