81927900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:165

約数の個数: 216

約数和(自身を含む): 275555280

約数和(自身を除く): 193627380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 29, 30, 36, 43, 45, 50, 58, 60, 73, 75, 86, 87, 90, 100, 116, 129, 145, 146, 150, 172, 174, 180, 215, 219, 225, 258, 261, 290, 292, 300, 348, 365, 387, 430, 435, 438, 450, 516, 522, 580, 645, 657, 725, 730, 774, 860, 870, 876, 900, 1044, 1075, 1095, 1247, 1290, 1305, 1314, 1450, 1460, 1548, 1740, 1825, 1935, 2117, 2150, 2175, 2190, 2494, 2580, 2610, 2628, 2900, 3139, 3225, 3285, 3650, 3741, 3870, 4234, 4300, 4350, 4380, 4988, 5220, 5475, 6235, 6278, 6351, 6450, 6525, 6570, 7300, 7482, 7740, 8468, 8700, 9417, 9675, 10585, 10950, 11223, 12470, 12556, 12702, 12900, 13050, 13140, 14964, 15695, 16425, 18705, 18834, 19053, 19350, 21170, 21900, 22446, 24940, 25404, 26100, 28251, 31175, 31390, 31755, 32850, 37410, 37668, 38106, 38700, 42340, 44892, 47085, 52925, 56115, 56502, 62350, 62780, 63510, 65700, 74820, 76212, 78475, 91031, 93525, 94170, 95265, 105850, 112230, 113004, 124700, 127020, 141255, 156950, 158775, 182062, 187050, 188340, 190530, 211700, 224460, 235425, 273093, 280575, 282510, 313900, 317550, 364124, 374100, 381060, 455155, 470850, 476325, 546186, 561150, 565020, 635100, 706275, 819279, 910310, 941700, 952650, 1092372, 1122300, 1365465, 1412550, 1638558, 1820620, 1905300, 2275775, 2730930, 2825100, 3277116, 4096395, 4551550, 5461860, 6827325, 8192790, 9103100, 13654650, 16385580, 20481975, 27309300, 40963950, 81927900]

約数ペア:

[(1, 81927900), (2, 40963950), (3, 27309300), (4, 20481975), (5, 16385580), (6, 13654650), (9, 9103100), (10, 8192790), (12, 6827325), (15, 5461860), (18, 4551550), (20, 4096395), (25, 3277116), (29, 2825100), (30, 2730930), (36, 2275775), (43, 1905300), (45, 1820620), (50, 1638558), (58, 1412550), (60, 1365465), (73, 1122300), (75, 1092372), (86, 952650), (87, 941700), (90, 910310), (100, 819279), (116, 706275), (129, 635100), (145, 565020), (146, 561150), (150, 546186), (172, 476325), (174, 470850), (180, 455155), (215, 381060), (219, 374100), (225, 364124), (258, 317550), (261, 313900), (290, 282510), (292, 280575), (300, 273093), (348, 235425), (365, 224460), (387, 211700), (430, 190530), (435, 188340), (438, 187050), (450, 182062), (516, 158775), (522, 156950), (580, 141255), (645, 127020), (657, 124700), (725, 113004), (730, 112230), (774, 105850), (860, 95265), (870, 94170), (876, 93525), (900, 91031), (1044, 78475), (1075, 76212), (1095, 74820), (1247, 65700), (1290, 63510), (1305, 62780), (1314, 62350), (1450, 56502), (1460, 56115), (1548, 52925), (1740, 47085), (1825, 44892), (1935, 42340), (2117, 38700), (2150, 38106), (2175, 37668), (2190, 37410), (2494, 32850), (2580, 31755), (2610, 31390), (2628, 31175), (2900, 28251), (3139, 26100), (3225, 25404), (3285, 24940), (3650, 22446), (3741, 21900), (3870, 21170), (4234, 19350), (4300, 19053), (4350, 18834), (4380, 18705), (4988, 16425), (5220, 15695), (5475, 14964), (6235, 13140), (6278, 13050), (6351, 12900), (6450, 12702), (6525, 12556), (6570, 12470), (7300, 11223), (7482, 10950), (7740, 10585), (8468, 9675), (8700, 9417)]