28305168920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1\times {\mathrm{6563}}^1$

素因数の和:6865

約数の個数: 128

約数和(自身を含む): 74142743040

約数和(自身を除く): 45837574120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 211, 280, 292, 365, 422, 511, 584, 730, 844, 1022, 1055, 1460, 1477, 1688, 2044, 2110, 2555, 2920, 2954, 4088, 4220, 5110, 5908, 6563, 7385, 8440, 10220, 11816, 13126, 14770, 15403, 20440, 26252, 29540, 30806, 32815, 45941, 52504, 59080, 61612, 65630, 77015, 91882, 107821, 123224, 131260, 154030, 183764, 215642, 229705, 262520, 308060, 367528, 431284, 459410, 479099, 539105, 616120, 862568, 918820, 958198, 1078210, 1384793, 1837640, 1916396, 2156420, 2395495, 2769586, 3353693, 3832792, 4312840, 4790990, 5539172, 6707386, 6923965, 9581980, 9693551, 11078344, 13414772, 13847930, 16768465, 19163960, 19387102, 26829544, 27695860, 33536930, 38774204, 48467755, 55391720, 67073860, 77548408, 96935510, 101089889, 134147720, 193871020, 202179778, 387742040, 404359556, 505449445, 707629223, 808719112, 1010898890, 1415258446, 2021797780, 2830516892, 3538146115, 4043595560, 5661033784, 7076292230, 14152584460, 28305168920]

約数ペア:

[(1, 28305168920), (2, 14152584460), (4, 7076292230), (5, 5661033784), (7, 4043595560), (8, 3538146115), (10, 2830516892), (14, 2021797780), (20, 1415258446), (28, 1010898890), (35, 808719112), (40, 707629223), (56, 505449445), (70, 404359556), (73, 387742040), (140, 202179778), (146, 193871020), (211, 134147720), (280, 101089889), (292, 96935510), (365, 77548408), (422, 67073860), (511, 55391720), (584, 48467755), (730, 38774204), (844, 33536930), (1022, 27695860), (1055, 26829544), (1460, 19387102), (1477, 19163960), (1688, 16768465), (2044, 13847930), (2110, 13414772), (2555, 11078344), (2920, 9693551), (2954, 9581980), (4088, 6923965), (4220, 6707386), (5110, 5539172), (5908, 4790990), (6563, 4312840), (7385, 3832792), (8440, 3353693), (10220, 2769586), (11816, 2395495), (13126, 2156420), (14770, 1916396), (15403, 1837640), (20440, 1384793), (26252, 1078210), (29540, 958198), (30806, 918820), (32815, 862568), (45941, 616120), (52504, 539105), (59080, 479099), (61612, 459410), (65630, 431284), (77015, 367528), (91882, 308060), (107821, 262520), (123224, 229705), (131260, 215642), (154030, 183764)]