20805216480

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{127859}}^1$

素因数の和:127993

約数の個数: 144

約数和(自身を含む): 71626660560

約数和(自身を除く): 50821444080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 113, 120, 144, 160, 180, 226, 240, 288, 339, 360, 452, 480, 565, 678, 720, 904, 1017, 1130, 1356, 1440, 1695, 1808, 2034, 2260, 2712, 3390, 3616, 4068, 4520, 5085, 5424, 6780, 8136, 9040, 10170, 10848, 13560, 16272, 18080, 20340, 27120, 32544, 40680, 54240, 81360, 127859, 162720, 255718, 383577, 511436, 639295, 767154, 1022872, 1150731, 1278590, 1534308, 1917885, 2045744, 2301462, 2557180, 3068616, 3835770, 4091488, 4602924, 5114360, 5753655, 6137232, 7671540, 9205848, 10228720, 11507310, 12274464, 14448067, 15343080, 18411696, 20457440, 23014620, 28896134, 30686160, 36823392, 43344201, 46029240, 57792268, 61372320, 72240335, 86688402, 92058480, 115584536, 130032603, 144480670, 173376804, 184116960, 216721005, 231169072, 260065206, 288961340, 346753608, 433442010, 462338144, 520130412, 577922680, 650163015, 693507216, 866884020, 1040260824, 1155845360, 1300326030, 1387014432, 1733768040, 2080521648, 2311690720, 2600652060, 3467536080, 4161043296, 5201304120, 6935072160, 10402608240, 20805216480]

約数ペア:

[(1, 20805216480), (2, 10402608240), (3, 6935072160), (4, 5201304120), (5, 4161043296), (6, 3467536080), (8, 2600652060), (9, 2311690720), (10, 2080521648), (12, 1733768040), (15, 1387014432), (16, 1300326030), (18, 1155845360), (20, 1040260824), (24, 866884020), (30, 693507216), (32, 650163015), (36, 577922680), (40, 520130412), (45, 462338144), (48, 433442010), (60, 346753608), (72, 288961340), (80, 260065206), (90, 231169072), (96, 216721005), (113, 184116960), (120, 173376804), (144, 144480670), (160, 130032603), (180, 115584536), (226, 92058480), (240, 86688402), (288, 72240335), (339, 61372320), (360, 57792268), (452, 46029240), (480, 43344201), (565, 36823392), (678, 30686160), (720, 28896134), (904, 23014620), (1017, 20457440), (1130, 18411696), (1356, 15343080), (1440, 14448067), (1695, 12274464), (1808, 11507310), (2034, 10228720), (2260, 9205848), (2712, 7671540), (3390, 6137232), (3616, 5753655), (4068, 5114360), (4520, 4602924), (5085, 4091488), (5424, 3835770), (6780, 3068616), (8136, 2557180), (9040, 2301462), (10170, 2045744), (10848, 1917885), (13560, 1534308), (16272, 1278590), (18080, 1150731), (20340, 1022872), (27120, 767154), (32544, 639295), (40680, 511436), (54240, 383577), (81360, 255718), (127859, 162720)]