12759880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{229}}^1$

素因数の和:446

約数の個数: 64

約数和(自身を含む): 33120000

約数和(自身を除く): 20360120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 199, 229, 280, 398, 458, 796, 916, 995, 1145, 1393, 1592, 1603, 1832, 1990, 2290, 2786, 3206, 3980, 4580, 5572, 6412, 6965, 7960, 8015, 9160, 11144, 12824, 13930, 16030, 27860, 32060, 45571, 55720, 64120, 91142, 182284, 227855, 318997, 364568, 455710, 637994, 911420, 1275988, 1594985, 1822840, 2551976, 3189970, 6379940, 12759880]

約数ペア:

[(1, 12759880), (2, 6379940), (4, 3189970), (5, 2551976), (7, 1822840), (8, 1594985), (10, 1275988), (14, 911420), (20, 637994), (28, 455710), (35, 364568), (40, 318997), (56, 227855), (70, 182284), (140, 91142), (199, 64120), (229, 55720), (280, 45571), (398, 32060), (458, 27860), (796, 16030), (916, 13930), (995, 12824), (1145, 11144), (1393, 9160), (1592, 8015), (1603, 7960), (1832, 6965), (1990, 6412), (2290, 5572), (2786, 4580), (3206, 3980)]