256874280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{164663}}^1$

素因数の和:164690

約数の個数: 64

約数和(自身を含む): 829906560

約数和(自身を除く): 573032280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 164663, 329326, 493989, 658652, 823315, 987978, 1317304, 1646630, 1975956, 2140619, 2469945, 3293260, 3951912, 4281238, 4939890, 6421857, 6586520, 8562476, 9879780, 10703095, 12843714, 17124952, 19759560, 21406190, 25687428, 32109285, 42812380, 51374856, 64218570, 85624760, 128437140, 256874280]

約数ペア:

[(1, 256874280), (2, 128437140), (3, 85624760), (4, 64218570), (5, 51374856), (6, 42812380), (8, 32109285), (10, 25687428), (12, 21406190), (13, 19759560), (15, 17124952), (20, 12843714), (24, 10703095), (26, 9879780), (30, 8562476), (39, 6586520), (40, 6421857), (52, 4939890), (60, 4281238), (65, 3951912), (78, 3293260), (104, 2469945), (120, 2140619), (130, 1975956), (156, 1646630), (195, 1317304), (260, 987978), (312, 823315), (390, 658652), (520, 493989), (780, 329326), (1560, 164663)]