20530800

素因数分解:

$2^4\times 3^3\times 5^2\times {\mathrm{1901}}^1$

素因数の和:1928

約数の個数: 120

約数和(自身を含む): 73112880

約数和(自身を除く): 52582080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 36, 40, 45, 48, 50, 54, 60, 72, 75, 80, 90, 100, 108, 120, 135, 144, 150, 180, 200, 216, 225, 240, 270, 300, 360, 400, 432, 450, 540, 600, 675, 720, 900, 1080, 1200, 1350, 1800, 1901, 2160, 2700, 3600, 3802, 5400, 5703, 7604, 9505, 10800, 11406, 15208, 17109, 19010, 22812, 28515, 30416, 34218, 38020, 45624, 47525, 51327, 57030, 68436, 76040, 85545, 91248, 95050, 102654, 114060, 136872, 142575, 152080, 171090, 190100, 205308, 228120, 256635, 273744, 285150, 342180, 380200, 410616, 427725, 456240, 513270, 570300, 684360, 760400, 821232, 855450, 1026540, 1140600, 1283175, 1368720, 1710900, 2053080, 2281200, 2566350, 3421800, 4106160, 5132700, 6843600, 10265400, 20530800]

約数ペア:

[(1, 20530800), (2, 10265400), (3, 6843600), (4, 5132700), (5, 4106160), (6, 3421800), (8, 2566350), (9, 2281200), (10, 2053080), (12, 1710900), (15, 1368720), (16, 1283175), (18, 1140600), (20, 1026540), (24, 855450), (25, 821232), (27, 760400), (30, 684360), (36, 570300), (40, 513270), (45, 456240), (48, 427725), (50, 410616), (54, 380200), (60, 342180), (72, 285150), (75, 273744), (80, 256635), (90, 228120), (100, 205308), (108, 190100), (120, 171090), (135, 152080), (144, 142575), (150, 136872), (180, 114060), (200, 102654), (216, 95050), (225, 91248), (240, 85545), (270, 76040), (300, 68436), (360, 57030), (400, 51327), (432, 47525), (450, 45624), (540, 38020), (600, 34218), (675, 30416), (720, 28515), (900, 22812), (1080, 19010), (1200, 17109), (1350, 15208), (1800, 11406), (1901, 10800), (2160, 9505), (2700, 7604), (3600, 5703), (3802, 5400)]