12648440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{227}}^1$

素因数の和:444

約数の個数: 64

約数和(自身を含む): 32832000

約数和(自身を除く): 20183560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 199, 227, 280, 398, 454, 796, 908, 995, 1135, 1393, 1589, 1592, 1816, 1990, 2270, 2786, 3178, 3980, 4540, 5572, 6356, 6965, 7945, 7960, 9080, 11144, 12712, 13930, 15890, 27860, 31780, 45173, 55720, 63560, 90346, 180692, 225865, 316211, 361384, 451730, 632422, 903460, 1264844, 1581055, 1806920, 2529688, 3162110, 6324220, 12648440]

約数ペア:

[(1, 12648440), (2, 6324220), (4, 3162110), (5, 2529688), (7, 1806920), (8, 1581055), (10, 1264844), (14, 903460), (20, 632422), (28, 451730), (35, 361384), (40, 316211), (56, 225865), (70, 180692), (140, 90346), (199, 63560), (227, 55720), (280, 45173), (398, 31780), (454, 27860), (796, 15890), (908, 13930), (995, 12712), (1135, 11144), (1393, 9080), (1589, 7960), (1592, 7945), (1816, 6965), (1990, 6356), (2270, 5572), (2786, 4540), (3178, 3980)]