1388404640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{227}}^1$

素因数の和:419

約数の個数: 192

約数和(自身を含む): 3883106304

約数和(自身を除く): 2494701664

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 56, 70, 80, 86, 112, 127, 140, 160, 172, 215, 224, 227, 254, 280, 301, 344, 430, 454, 508, 560, 602, 635, 688, 860, 889, 908, 1016, 1120, 1135, 1204, 1270, 1376, 1505, 1589, 1720, 1778, 1816, 2032, 2270, 2408, 2540, 3010, 3178, 3440, 3556, 3632, 4064, 4445, 4540, 4816, 5080, 5461, 6020, 6356, 6880, 7112, 7264, 7945, 8890, 9080, 9632, 9761, 10160, 10922, 12040, 12712, 14224, 15890, 17780, 18160, 19522, 20320, 21844, 24080, 25424, 27305, 28448, 28829, 31780, 35560, 36320, 38227, 39044, 43688, 48160, 48805, 50848, 54610, 57658, 63560, 68327, 71120, 76454, 78088, 87376, 97610, 109220, 115316, 127120, 136654, 142240, 144145, 152908, 156176, 174752, 191135, 195220, 201803, 218440, 230632, 254240, 273308, 288290, 305816, 312352, 341635, 382270, 390440, 403606, 436880, 461264, 546616, 576580, 611632, 683270, 764540, 780880, 807212, 873760, 922528, 1009015, 1093232, 1153160, 1223264, 1239647, 1366540, 1529080, 1561760, 1614424, 2018030, 2186464, 2306320, 2479294, 2733080, 3058160, 3228848, 4036060, 4612640, 4958588, 5466160, 6116320, 6198235, 6457696, 8072120, 8677529, 9917176, 10932320, 12396470, 16144240, 17355058, 19834352, 24792940, 32288480, 34710116, 39668704, 43387645, 49585880, 69420232, 86775290, 99171760, 138840464, 173550580, 198343520, 277680928, 347101160, 694202320, 1388404640]

約数ペア:

[(1, 1388404640), (2, 694202320), (4, 347101160), (5, 277680928), (7, 198343520), (8, 173550580), (10, 138840464), (14, 99171760), (16, 86775290), (20, 69420232), (28, 49585880), (32, 43387645), (35, 39668704), (40, 34710116), (43, 32288480), (56, 24792940), (70, 19834352), (80, 17355058), (86, 16144240), (112, 12396470), (127, 10932320), (140, 9917176), (160, 8677529), (172, 8072120), (215, 6457696), (224, 6198235), (227, 6116320), (254, 5466160), (280, 4958588), (301, 4612640), (344, 4036060), (430, 3228848), (454, 3058160), (508, 2733080), (560, 2479294), (602, 2306320), (635, 2186464), (688, 2018030), (860, 1614424), (889, 1561760), (908, 1529080), (1016, 1366540), (1120, 1239647), (1135, 1223264), (1204, 1153160), (1270, 1093232), (1376, 1009015), (1505, 922528), (1589, 873760), (1720, 807212), (1778, 780880), (1816, 764540), (2032, 683270), (2270, 611632), (2408, 576580), (2540, 546616), (3010, 461264), (3178, 436880), (3440, 403606), (3556, 390440), (3632, 382270), (4064, 341635), (4445, 312352), (4540, 305816), (4816, 288290), (5080, 273308), (5461, 254240), (6020, 230632), (6356, 218440), (6880, 201803), (7112, 195220), (7264, 191135), (7945, 174752), (8890, 156176), (9080, 152908), (9632, 144145), (9761, 142240), (10160, 136654), (10922, 127120), (12040, 115316), (12712, 109220), (14224, 97610), (15890, 87376), (17780, 78088), (18160, 76454), (19522, 71120), (20320, 68327), (21844, 63560), (24080, 57658), (25424, 54610), (27305, 50848), (28448, 48805), (28829, 48160), (31780, 43688), (35560, 39044), (36320, 38227)]