64890720

素因数分解:

$2^5\times 3^5\times 5^1\times {\mathrm{1669}}^1$

素因数の和:1699

約数の個数: 144

約数和(自身を含む): 229778640

約数和(自身を除く): 164887920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 243, 270, 288, 324, 360, 405, 432, 480, 486, 540, 648, 720, 810, 864, 972, 1080, 1215, 1296, 1440, 1620, 1669, 1944, 2160, 2430, 2592, 3240, 3338, 3888, 4320, 4860, 5007, 6480, 6676, 7776, 8345, 9720, 10014, 12960, 13352, 15021, 16690, 19440, 20028, 25035, 26704, 30042, 33380, 38880, 40056, 45063, 50070, 53408, 60084, 66760, 75105, 80112, 90126, 100140, 120168, 133520, 135189, 150210, 160224, 180252, 200280, 225315, 240336, 267040, 270378, 300420, 360504, 400560, 405567, 450630, 480672, 540756, 600840, 675945, 721008, 801120, 811134, 901260, 1081512, 1201680, 1351890, 1442016, 1622268, 1802520, 2027835, 2163024, 2403360, 2703780, 3244536, 3605040, 4055670, 4326048, 5407560, 6489072, 7210080, 8111340, 10815120, 12978144, 16222680, 21630240, 32445360, 64890720]

約数ペア:

[(1, 64890720), (2, 32445360), (3, 21630240), (4, 16222680), (5, 12978144), (6, 10815120), (8, 8111340), (9, 7210080), (10, 6489072), (12, 5407560), (15, 4326048), (16, 4055670), (18, 3605040), (20, 3244536), (24, 2703780), (27, 2403360), (30, 2163024), (32, 2027835), (36, 1802520), (40, 1622268), (45, 1442016), (48, 1351890), (54, 1201680), (60, 1081512), (72, 901260), (80, 811134), (81, 801120), (90, 721008), (96, 675945), (108, 600840), (120, 540756), (135, 480672), (144, 450630), (160, 405567), (162, 400560), (180, 360504), (216, 300420), (240, 270378), (243, 267040), (270, 240336), (288, 225315), (324, 200280), (360, 180252), (405, 160224), (432, 150210), (480, 135189), (486, 133520), (540, 120168), (648, 100140), (720, 90126), (810, 80112), (864, 75105), (972, 66760), (1080, 60084), (1215, 53408), (1296, 50070), (1440, 45063), (1620, 40056), (1669, 38880), (1944, 33380), (2160, 30042), (2430, 26704), (2592, 25035), (3240, 20028), (3338, 19440), (3888, 16690), (4320, 15021), (4860, 13352), (5007, 12960), (6480, 10014), (6676, 9720), (7776, 8345)]