20717400

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:146

約数の個数: 192

約数和(自身を含む): 72673920

約数和(自身を除く): 51956520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 25, 30, 33, 40, 43, 44, 50, 55, 60, 66, 73, 75, 86, 88, 100, 110, 120, 129, 132, 146, 150, 165, 172, 200, 215, 219, 220, 258, 264, 275, 292, 300, 330, 344, 365, 430, 438, 440, 473, 516, 550, 584, 600, 645, 660, 730, 803, 825, 860, 876, 946, 1032, 1075, 1095, 1100, 1290, 1320, 1419, 1460, 1606, 1650, 1720, 1752, 1825, 1892, 2150, 2190, 2200, 2365, 2409, 2580, 2838, 2920, 3139, 3212, 3225, 3300, 3650, 3784, 4015, 4300, 4380, 4730, 4818, 5160, 5475, 5676, 6278, 6424, 6450, 6600, 7095, 7300, 8030, 8600, 8760, 9417, 9460, 9636, 10950, 11352, 11825, 12045, 12556, 12900, 14190, 14600, 15695, 16060, 18834, 18920, 19272, 20075, 21900, 23650, 24090, 25112, 25800, 28380, 31390, 32120, 34529, 35475, 37668, 40150, 43800, 47085, 47300, 48180, 56760, 60225, 62780, 69058, 70950, 75336, 78475, 80300, 94170, 94600, 96360, 103587, 120450, 125560, 138116, 141900, 156950, 160600, 172645, 188340, 207174, 235425, 240900, 276232, 283800, 313900, 345290, 376680, 414348, 470850, 481800, 517935, 627800, 690580, 828696, 863225, 941700, 1035870, 1381160, 1726450, 1883400, 2071740, 2589675, 3452900, 4143480, 5179350, 6905800, 10358700, 20717400]

約数ペア:

[(1, 20717400), (2, 10358700), (3, 6905800), (4, 5179350), (5, 4143480), (6, 3452900), (8, 2589675), (10, 2071740), (11, 1883400), (12, 1726450), (15, 1381160), (20, 1035870), (22, 941700), (24, 863225), (25, 828696), (30, 690580), (33, 627800), (40, 517935), (43, 481800), (44, 470850), (50, 414348), (55, 376680), (60, 345290), (66, 313900), (73, 283800), (75, 276232), (86, 240900), (88, 235425), (100, 207174), (110, 188340), (120, 172645), (129, 160600), (132, 156950), (146, 141900), (150, 138116), (165, 125560), (172, 120450), (200, 103587), (215, 96360), (219, 94600), (220, 94170), (258, 80300), (264, 78475), (275, 75336), (292, 70950), (300, 69058), (330, 62780), (344, 60225), (365, 56760), (430, 48180), (438, 47300), (440, 47085), (473, 43800), (516, 40150), (550, 37668), (584, 35475), (600, 34529), (645, 32120), (660, 31390), (730, 28380), (803, 25800), (825, 25112), (860, 24090), (876, 23650), (946, 21900), (1032, 20075), (1075, 19272), (1095, 18920), (1100, 18834), (1290, 16060), (1320, 15695), (1419, 14600), (1460, 14190), (1606, 12900), (1650, 12556), (1720, 12045), (1752, 11825), (1825, 11352), (1892, 10950), (2150, 9636), (2190, 9460), (2200, 9417), (2365, 8760), (2409, 8600), (2580, 8030), (2838, 7300), (2920, 7095), (3139, 6600), (3212, 6450), (3225, 6424), (3300, 6278), (3650, 5676), (3784, 5475), (4015, 5160), (4300, 4818), (4380, 4730)]