20178163770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{648607}}^1$

素因数の和:648695

約数の個数: 64

約数和(自身を含む): 52116950016

約数和(自身を除く): 31938786246

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 61, 85, 102, 122, 170, 183, 255, 305, 366, 510, 610, 915, 1037, 1830, 2074, 3111, 5185, 6222, 10370, 15555, 31110, 648607, 1297214, 1945821, 3243035, 3891642, 6486070, 9729105, 11026319, 19458210, 22052638, 33078957, 39565027, 55131595, 66157914, 79130054, 110263190, 118695081, 165394785, 197825135, 237390162, 330789570, 395650270, 593475405, 672605459, 1186950810, 1345210918, 2017816377, 3363027295, 4035632754, 6726054590, 10089081885, 20178163770]

約数ペア:

[(1, 20178163770), (2, 10089081885), (3, 6726054590), (5, 4035632754), (6, 3363027295), (10, 2017816377), (15, 1345210918), (17, 1186950810), (30, 672605459), (34, 593475405), (51, 395650270), (61, 330789570), (85, 237390162), (102, 197825135), (122, 165394785), (170, 118695081), (183, 110263190), (255, 79130054), (305, 66157914), (366, 55131595), (510, 39565027), (610, 33078957), (915, 22052638), (1037, 19458210), (1830, 11026319), (2074, 9729105), (3111, 6486070), (5185, 3891642), (6222, 3243035), (10370, 1945821), (15555, 1297214), (31110, 648607)]