21630240

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{1669}}^1$

素因数の和:1696

約数の個数: 120

約数和(自身を含む): 76382460

約数和(自身を除く): 54752220

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, 270, 288, 324, 360, 405, 432, 480, 540, 648, 720, 810, 864, 1080, 1296, 1440, 1620, 1669, 2160, 2592, 3240, 3338, 4320, 5007, 6480, 6676, 8345, 10014, 12960, 13352, 15021, 16690, 20028, 25035, 26704, 30042, 33380, 40056, 45063, 50070, 53408, 60084, 66760, 75105, 80112, 90126, 100140, 120168, 133520, 135189, 150210, 160224, 180252, 200280, 225315, 240336, 267040, 270378, 300420, 360504, 400560, 450630, 480672, 540756, 600840, 675945, 721008, 801120, 901260, 1081512, 1201680, 1351890, 1442016, 1802520, 2163024, 2403360, 2703780, 3605040, 4326048, 5407560, 7210080, 10815120, 21630240]

約数ペア:

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