21255670100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{431}}^1\times {\mathrm{1499}}^1$

素因数の和:1998

約数の個数: 144

約数和(自身を含む): 53996544000

約数和(自身を除く): 32740873900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 47, 50, 70, 94, 100, 140, 175, 188, 235, 329, 350, 431, 470, 658, 700, 862, 940, 1175, 1316, 1499, 1645, 1724, 2155, 2350, 2998, 3017, 3290, 4310, 4700, 5996, 6034, 6580, 7495, 8225, 8620, 10493, 10775, 12068, 14990, 15085, 16450, 20257, 20986, 21550, 29980, 30170, 32900, 37475, 40514, 41972, 43100, 52465, 60340, 70453, 74950, 75425, 81028, 101285, 104930, 140906, 141799, 149900, 150850, 202570, 209860, 262325, 281812, 283598, 301700, 352265, 405140, 493171, 506425, 524650, 567196, 646069, 704530, 708995, 986342, 1012850, 1049300, 1292138, 1409060, 1417990, 1761325, 1972684, 2025700, 2465855, 2584276, 2835980, 3230345, 3522650, 3544975, 4522483, 4931710, 6460690, 7045300, 7089950, 9044966, 9863420, 12329275, 12921380, 14179900, 16151725, 18089932, 22612415, 24658550, 30365243, 32303450, 45224830, 49317100, 60730486, 64606900, 90449660, 113062075, 121460972, 151826215, 212556701, 226124150, 303652430, 425113402, 452248300, 607304860, 759131075, 850226804, 1062783505, 1518262150, 2125567010, 3036524300, 4251134020, 5313917525, 10627835050, 21255670100]

約数ペア:

[(1, 21255670100), (2, 10627835050), (4, 5313917525), (5, 4251134020), (7, 3036524300), (10, 2125567010), (14, 1518262150), (20, 1062783505), (25, 850226804), (28, 759131075), (35, 607304860), (47, 452248300), (50, 425113402), (70, 303652430), (94, 226124150), (100, 212556701), (140, 151826215), (175, 121460972), (188, 113062075), (235, 90449660), (329, 64606900), (350, 60730486), (431, 49317100), (470, 45224830), (658, 32303450), (700, 30365243), (862, 24658550), (940, 22612415), (1175, 18089932), (1316, 16151725), (1499, 14179900), (1645, 12921380), (1724, 12329275), (2155, 9863420), (2350, 9044966), (2998, 7089950), (3017, 7045300), (3290, 6460690), (4310, 4931710), (4700, 4522483), (5996, 3544975), (6034, 3522650), (6580, 3230345), (7495, 2835980), (8225, 2584276), (8620, 2465855), (10493, 2025700), (10775, 1972684), (12068, 1761325), (14990, 1417990), (15085, 1409060), (16450, 1292138), (20257, 1049300), (20986, 1012850), (21550, 986342), (29980, 708995), (30170, 704530), (32900, 646069), (37475, 567196), (40514, 524650), (41972, 506425), (43100, 493171), (52465, 405140), (60340, 352265), (70453, 301700), (74950, 283598), (75425, 281812), (81028, 262325), (101285, 209860), (104930, 202570), (140906, 150850), (141799, 149900)]