20161963280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2857}}^1\times {\mathrm{5189}}^1$

素因数の和:8076

約数の個数: 80

約数和(自身を含む): 49660950960

約数和(自身を除く): 29498987680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 2857, 5189, 5714, 10378, 11428, 14285, 20756, 22856, 25945, 28570, 41512, 45712, 48569, 51890, 57140, 83024, 88213, 97138, 103780, 114280, 176426, 194276, 207560, 228560, 242845, 352852, 388552, 415120, 441065, 485690, 705704, 777104, 882130, 971380, 1411408, 1764260, 1942760, 3528520, 3885520, 7057040, 14824973, 29649946, 59299892, 74124865, 118599784, 148249730, 237199568, 252024541, 296499460, 504049082, 592998920, 1008098164, 1185997840, 1260122705, 2016196328, 2520245410, 4032392656, 5040490820, 10080981640, 20161963280]

約数ペア:

[(1, 20161963280), (2, 10080981640), (4, 5040490820), (5, 4032392656), (8, 2520245410), (10, 2016196328), (16, 1260122705), (17, 1185997840), (20, 1008098164), (34, 592998920), (40, 504049082), (68, 296499460), (80, 252024541), (85, 237199568), (136, 148249730), (170, 118599784), (272, 74124865), (340, 59299892), (680, 29649946), (1360, 14824973), (2857, 7057040), (5189, 3885520), (5714, 3528520), (10378, 1942760), (11428, 1764260), (14285, 1411408), (20756, 971380), (22856, 882130), (25945, 777104), (28570, 705704), (41512, 485690), (45712, 441065), (48569, 415120), (51890, 388552), (57140, 352852), (83024, 242845), (88213, 228560), (97138, 207560), (103780, 194276), (114280, 176426)]