12684280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{509}}^1$

素因数の和:616

約数の個数: 64

約数和(自身を含む): 33048000

約数和(自身を除く): 20363720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 280, 356, 445, 509, 623, 712, 890, 1018, 1246, 1780, 2036, 2492, 2545, 3115, 3560, 3563, 4072, 4984, 5090, 6230, 7126, 10180, 12460, 14252, 17815, 20360, 24920, 28504, 35630, 45301, 71260, 90602, 142520, 181204, 226505, 317107, 362408, 453010, 634214, 906020, 1268428, 1585535, 1812040, 2536856, 3171070, 6342140, 12684280]

約数ペア:

[(1, 12684280), (2, 6342140), (4, 3171070), (5, 2536856), (7, 1812040), (8, 1585535), (10, 1268428), (14, 906020), (20, 634214), (28, 453010), (35, 362408), (40, 317107), (56, 226505), (70, 181204), (89, 142520), (140, 90602), (178, 71260), (280, 45301), (356, 35630), (445, 28504), (509, 24920), (623, 20360), (712, 17815), (890, 14252), (1018, 12460), (1246, 10180), (1780, 7126), (2036, 6230), (2492, 5090), (2545, 4984), (3115, 4072), (3560, 3563)]