20345486

素因数分解:

$2^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:265

約数の個数: 48

約数和(自身を含む): 37844352

約数和(自身を除く): 17498866

約数列:

[1, 2, 7, 14, 31, 37, 49, 62, 74, 98, 181, 217, 259, 362, 434, 518, 1147, 1267, 1519, 1813, 2294, 2534, 3038, 3626, 5611, 6697, 8029, 8869, 11222, 13394, 16058, 17738, 39277, 46879, 56203, 78554, 93758, 112406, 207607, 274939, 328153, 415214, 549878, 656306, 1453249, 2906498, 10172743, 20345486]

約数ペア:

[(1, 20345486), (2, 10172743), (7, 2906498), (14, 1453249), (31, 656306), (37, 549878), (49, 415214), (62, 328153), (74, 274939), (98, 207607), (181, 112406), (217, 93758), (259, 78554), (362, 56203), (434, 46879), (518, 39277), (1147, 17738), (1267, 16058), (1519, 13394), (1813, 11222), (2294, 8869), (2534, 8029), (3038, 6697), (3626, 5611)]