1897782920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{563}}^1$

素因数の和:795

約数の個数: 128

約数和(自身を含む): 4794992640

約数和(自身を除く): 2897209720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 163, 188, 220, 235, 326, 376, 440, 470, 517, 563, 652, 815, 940, 1034, 1126, 1304, 1630, 1793, 1880, 2068, 2252, 2585, 2815, 3260, 3586, 4136, 4504, 5170, 5630, 6193, 6520, 7172, 7661, 8965, 10340, 11260, 12386, 14344, 15322, 17930, 20680, 22520, 24772, 26461, 30644, 30965, 35860, 38305, 49544, 52922, 61288, 61930, 71720, 76610, 84271, 91769, 105844, 123860, 132305, 153220, 168542, 183538, 211688, 247720, 264610, 291071, 306440, 337084, 367076, 421355, 458845, 529220, 582142, 674168, 734152, 842710, 917690, 1009459, 1058440, 1164284, 1455355, 1685420, 1835380, 2018918, 2328568, 2910710, 3370840, 3670760, 4037836, 4313143, 5047295, 5821420, 8075672, 8626286, 10094590, 11642840, 17252572, 20189180, 21565715, 34505144, 40378360, 43131430, 47444573, 86262860, 94889146, 172525720, 189778292, 237222865, 379556584, 474445730, 948891460, 1897782920]

約数ペア:

[(1, 1897782920), (2, 948891460), (4, 474445730), (5, 379556584), (8, 237222865), (10, 189778292), (11, 172525720), (20, 94889146), (22, 86262860), (40, 47444573), (44, 43131430), (47, 40378360), (55, 34505144), (88, 21565715), (94, 20189180), (110, 17252572), (163, 11642840), (188, 10094590), (220, 8626286), (235, 8075672), (326, 5821420), (376, 5047295), (440, 4313143), (470, 4037836), (517, 3670760), (563, 3370840), (652, 2910710), (815, 2328568), (940, 2018918), (1034, 1835380), (1126, 1685420), (1304, 1455355), (1630, 1164284), (1793, 1058440), (1880, 1009459), (2068, 917690), (2252, 842710), (2585, 734152), (2815, 674168), (3260, 582142), (3586, 529220), (4136, 458845), (4504, 421355), (5170, 367076), (5630, 337084), (6193, 306440), (6520, 291071), (7172, 264610), (7661, 247720), (8965, 211688), (10340, 183538), (11260, 168542), (12386, 153220), (14344, 132305), (15322, 123860), (17930, 105844), (20680, 91769), (22520, 84271), (24772, 76610), (26461, 71720), (30644, 61930), (30965, 61288), (35860, 52922), (38305, 49544)]