20651452184

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1\times {\mathrm{521}}^1$

素因数の和:865

約数の個数: 128

約数和(自身を含む): 45130867200

約数和(自身を除く): 24479415016

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 151, 152, 157, 209, 302, 314, 418, 521, 604, 628, 836, 1042, 1208, 1256, 1661, 1672, 1727, 2084, 2869, 2983, 3322, 3454, 4168, 5731, 5738, 5966, 6644, 6908, 9899, 11462, 11476, 11932, 13288, 13816, 19798, 22924, 22952, 23707, 23864, 31559, 32813, 39596, 45848, 47414, 63118, 65626, 78671, 79192, 81797, 94828, 108889, 126236, 131252, 157342, 163594, 189656, 217778, 252472, 260777, 262504, 314684, 327188, 435556, 450433, 521554, 629368, 654376, 865381, 871112, 899767, 900866, 1043108, 1494749, 1554143, 1730762, 1799534, 1801732, 2086216, 2989498, 3108286, 3461524, 3599068, 3603464, 4954763, 5978996, 6216572, 6923048, 7198136, 9909526, 11957992, 12351347, 12433144, 16442239, 17095573, 19819052, 24702694, 32884478, 34191146, 39638104, 49405388, 65768956, 68382292, 98810776, 131537912, 135864817, 136764584, 234675593, 271729634, 469351186, 543459268, 938702372, 1086918536, 1877404744, 2581431523, 5162863046, 10325726092, 20651452184]

約数ペア:

[(1, 20651452184), (2, 10325726092), (4, 5162863046), (8, 2581431523), (11, 1877404744), (19, 1086918536), (22, 938702372), (38, 543459268), (44, 469351186), (76, 271729634), (88, 234675593), (151, 136764584), (152, 135864817), (157, 131537912), (209, 98810776), (302, 68382292), (314, 65768956), (418, 49405388), (521, 39638104), (604, 34191146), (628, 32884478), (836, 24702694), (1042, 19819052), (1208, 17095573), (1256, 16442239), (1661, 12433144), (1672, 12351347), (1727, 11957992), (2084, 9909526), (2869, 7198136), (2983, 6923048), (3322, 6216572), (3454, 5978996), (4168, 4954763), (5731, 3603464), (5738, 3599068), (5966, 3461524), (6644, 3108286), (6908, 2989498), (9899, 2086216), (11462, 1801732), (11476, 1799534), (11932, 1730762), (13288, 1554143), (13816, 1494749), (19798, 1043108), (22924, 900866), (22952, 899767), (23707, 871112), (23864, 865381), (31559, 654376), (32813, 629368), (39596, 521554), (45848, 450433), (47414, 435556), (63118, 327188), (65626, 314684), (78671, 262504), (79192, 260777), (81797, 252472), (94828, 217778), (108889, 189656), (126236, 163594), (131252, 157342)]