25296880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{227}}^1$

素因数の和:446

約数の個数: 80

約数和(自身を含む): 67852800

約数和(自身を除く): 42555920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 199, 227, 280, 398, 454, 560, 796, 908, 995, 1135, 1393, 1589, 1592, 1816, 1990, 2270, 2786, 3178, 3184, 3632, 3980, 4540, 5572, 6356, 6965, 7945, 7960, 9080, 11144, 12712, 13930, 15890, 15920, 18160, 22288, 25424, 27860, 31780, 45173, 55720, 63560, 90346, 111440, 127120, 180692, 225865, 316211, 361384, 451730, 632422, 722768, 903460, 1264844, 1581055, 1806920, 2529688, 3162110, 3613840, 5059376, 6324220, 12648440, 25296880]

約数ペア:

[(1, 25296880), (2, 12648440), (4, 6324220), (5, 5059376), (7, 3613840), (8, 3162110), (10, 2529688), (14, 1806920), (16, 1581055), (20, 1264844), (28, 903460), (35, 722768), (40, 632422), (56, 451730), (70, 361384), (80, 316211), (112, 225865), (140, 180692), (199, 127120), (227, 111440), (280, 90346), (398, 63560), (454, 55720), (560, 45173), (796, 31780), (908, 27860), (995, 25424), (1135, 22288), (1393, 18160), (1589, 15920), (1592, 15890), (1816, 13930), (1990, 12712), (2270, 11144), (2786, 9080), (3178, 7960), (3184, 7945), (3632, 6965), (3980, 6356), (4540, 5572)]