21506427720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{1789}}^1\times {\mathrm{11131}}^1$

素因数の和:12940

約数の個数: 128

約数和(自身を含む): 71734608000

約数和(自身を除く): 50228180280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 1789, 3578, 5367, 7156, 8945, 10734, 11131, 14312, 16101, 17890, 21468, 22262, 26835, 32202, 33393, 35780, 42936, 44524, 48303, 53670, 55655, 64404, 66786, 71560, 80505, 89048, 96606, 100179, 107340, 111310, 128808, 133572, 161010, 166965, 193212, 200358, 214680, 222620, 241515, 267144, 300537, 322020, 333930, 386424, 400716, 445240, 483030, 500895, 601074, 644040, 667860, 801432, 966060, 1001790, 1202148, 1335720, 1502685, 1932120, 2003580, 2404296, 3005370, 4007160, 6010740, 12021480, 19913359, 39826718, 59740077, 79653436, 99566795, 119480154, 159306872, 179220231, 199133590, 238960308, 298700385, 358440462, 398267180, 477920616, 537660693, 597400770, 716880924, 796534360, 896101155, 1075321386, 1194801540, 1433761848, 1792202310, 2150642772, 2389603080, 2688303465, 3584404620, 4301285544, 5376606930, 7168809240, 10753213860, 21506427720]

約数ペア:

[(1, 21506427720), (2, 10753213860), (3, 7168809240), (4, 5376606930), (5, 4301285544), (6, 3584404620), (8, 2688303465), (9, 2389603080), (10, 2150642772), (12, 1792202310), (15, 1433761848), (18, 1194801540), (20, 1075321386), (24, 896101155), (27, 796534360), (30, 716880924), (36, 597400770), (40, 537660693), (45, 477920616), (54, 398267180), (60, 358440462), (72, 298700385), (90, 238960308), (108, 199133590), (120, 179220231), (135, 159306872), (180, 119480154), (216, 99566795), (270, 79653436), (360, 59740077), (540, 39826718), (1080, 19913359), (1789, 12021480), (3578, 6010740), (5367, 4007160), (7156, 3005370), (8945, 2404296), (10734, 2003580), (11131, 1932120), (14312, 1502685), (16101, 1335720), (17890, 1202148), (21468, 1001790), (22262, 966060), (26835, 801432), (32202, 667860), (33393, 644040), (35780, 601074), (42936, 500895), (44524, 483030), (48303, 445240), (53670, 400716), (55655, 386424), (64404, 333930), (66786, 322020), (71560, 300537), (80505, 267144), (89048, 241515), (96606, 222620), (100179, 214680), (107340, 200358), (111310, 193212), (128808, 166965), (133572, 161010)]