90921780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{691}}^1$

素因数の和:766

約数の個数: 144

約数和(自身を含む): 299242944

約数和(自身を除く): 208321164

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 43, 45, 51, 60, 68, 85, 86, 90, 102, 129, 153, 170, 172, 180, 204, 215, 255, 258, 306, 340, 387, 430, 510, 516, 612, 645, 691, 731, 765, 774, 860, 1020, 1290, 1382, 1462, 1530, 1548, 1935, 2073, 2193, 2580, 2764, 2924, 3060, 3455, 3655, 3870, 4146, 4386, 6219, 6579, 6910, 7310, 7740, 8292, 8772, 10365, 10965, 11747, 12438, 13158, 13820, 14620, 20730, 21930, 23494, 24876, 26316, 29713, 31095, 32895, 35241, 41460, 43860, 46988, 58735, 59426, 62190, 65790, 70482, 89139, 105723, 117470, 118852, 124380, 131580, 140964, 148565, 176205, 178278, 211446, 234940, 267417, 297130, 352410, 356556, 422892, 445695, 505121, 528615, 534834, 594260, 704820, 891390, 1010242, 1057230, 1069668, 1337085, 1515363, 1782780, 2020484, 2114460, 2525605, 2674170, 3030726, 4546089, 5051210, 5348340, 6061452, 7576815, 9092178, 10102420, 15153630, 18184356, 22730445, 30307260, 45460890, 90921780]

約数ペア:

[(1, 90921780), (2, 45460890), (3, 30307260), (4, 22730445), (5, 18184356), (6, 15153630), (9, 10102420), (10, 9092178), (12, 7576815), (15, 6061452), (17, 5348340), (18, 5051210), (20, 4546089), (30, 3030726), (34, 2674170), (36, 2525605), (43, 2114460), (45, 2020484), (51, 1782780), (60, 1515363), (68, 1337085), (85, 1069668), (86, 1057230), (90, 1010242), (102, 891390), (129, 704820), (153, 594260), (170, 534834), (172, 528615), (180, 505121), (204, 445695), (215, 422892), (255, 356556), (258, 352410), (306, 297130), (340, 267417), (387, 234940), (430, 211446), (510, 178278), (516, 176205), (612, 148565), (645, 140964), (691, 131580), (731, 124380), (765, 118852), (774, 117470), (860, 105723), (1020, 89139), (1290, 70482), (1382, 65790), (1462, 62190), (1530, 59426), (1548, 58735), (1935, 46988), (2073, 43860), (2193, 41460), (2580, 35241), (2764, 32895), (2924, 31095), (3060, 29713), (3455, 26316), (3655, 24876), (3870, 23494), (4146, 21930), (4386, 20730), (6219, 14620), (6579, 13820), (6910, 13158), (7310, 12438), (7740, 11747), (8292, 10965), (8772, 10365)]