1818721870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:338

約数の個数: 128

約数和(自身を含む): 3982970880

約数和(自身を除く): 2164249010

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 47, 70, 82, 94, 97, 139, 194, 205, 235, 278, 287, 329, 410, 470, 485, 574, 658, 679, 695, 970, 973, 1358, 1390, 1435, 1645, 1927, 1946, 2870, 3290, 3395, 3854, 3977, 4559, 4865, 5699, 6533, 6790, 7954, 9118, 9635, 9730, 11398, 13066, 13483, 13489, 19270, 19885, 22795, 26966, 26978, 27839, 28495, 31913, 32665, 39770, 39893, 45590, 45731, 55678, 56990, 63826, 65330, 67415, 67445, 79786, 91462, 94381, 134830, 134890, 139195, 159565, 186919, 188762, 199465, 228655, 267853, 278390, 319130, 373838, 398930, 457310, 471905, 535706, 552803, 633701, 934595, 943810, 1105606, 1267402, 1308433, 1339265, 1869190, 1874971, 2616866, 2678530, 2764015, 3168505, 3749942, 3869621, 4435907, 5528030, 6337010, 6542165, 7739242, 8871814, 9374855, 13084330, 18749710, 19348105, 22179535, 25981741, 38696210, 44359070, 51963482, 129908705, 181872187, 259817410, 363744374, 909360935, 1818721870]

約数ペア:

[(1, 1818721870), (2, 909360935), (5, 363744374), (7, 259817410), (10, 181872187), (14, 129908705), (35, 51963482), (41, 44359070), (47, 38696210), (70, 25981741), (82, 22179535), (94, 19348105), (97, 18749710), (139, 13084330), (194, 9374855), (205, 8871814), (235, 7739242), (278, 6542165), (287, 6337010), (329, 5528030), (410, 4435907), (470, 3869621), (485, 3749942), (574, 3168505), (658, 2764015), (679, 2678530), (695, 2616866), (970, 1874971), (973, 1869190), (1358, 1339265), (1390, 1308433), (1435, 1267402), (1645, 1105606), (1927, 943810), (1946, 934595), (2870, 633701), (3290, 552803), (3395, 535706), (3854, 471905), (3977, 457310), (4559, 398930), (4865, 373838), (5699, 319130), (6533, 278390), (6790, 267853), (7954, 228655), (9118, 199465), (9635, 188762), (9730, 186919), (11398, 159565), (13066, 139195), (13483, 134890), (13489, 134830), (19270, 94381), (19885, 91462), (22795, 79786), (26966, 67445), (26978, 67415), (27839, 65330), (28495, 63826), (31913, 56990), (32665, 55678), (39770, 45731), (39893, 45590)]