20199808304

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1229297}}^1$

素因数の和:1229397

約数の個数: 40

約数和(自身を含む): 42681226560

約数和(自身を除く): 22481418256

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 79, 104, 158, 208, 316, 632, 1027, 1264, 2054, 4108, 8216, 16432, 1229297, 2458594, 4917188, 9834376, 15980861, 19668752, 31961722, 63923444, 97114463, 127846888, 194228926, 255693776, 388457852, 776915704, 1262488019, 1553831408, 2524976038, 5049952076, 10099904152, 20199808304]

約数ペア:

[(1, 20199808304), (2, 10099904152), (4, 5049952076), (8, 2524976038), (13, 1553831408), (16, 1262488019), (26, 776915704), (52, 388457852), (79, 255693776), (104, 194228926), (158, 127846888), (208, 97114463), (316, 63923444), (632, 31961722), (1027, 19668752), (1264, 15980861), (2054, 9834376), (4108, 4917188), (8216, 2458594), (16432, 1229297)]