20197797376

素因数分解:

$2^9\times {\mathrm{17}}^1\times {\mathrm{2320519}}^1$

素因数の和:2320554

約数の個数: 40

約数和(自身を含む): 42730055280

約数和(自身を除く): 22532257904

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 512, 544, 1088, 2176, 4352, 8704, 2320519, 4641038, 9282076, 18564152, 37128304, 39448823, 74256608, 78897646, 148513216, 157795292, 297026432, 315590584, 594052864, 631181168, 1188105728, 1262362336, 2524724672, 5049449344, 10098898688, 20197797376]

約数ペア:

[(1, 20197797376), (2, 10098898688), (4, 5049449344), (8, 2524724672), (16, 1262362336), (17, 1188105728), (32, 631181168), (34, 594052864), (64, 315590584), (68, 297026432), (128, 157795292), (136, 148513216), (256, 78897646), (272, 74256608), (512, 39448823), (544, 37128304), (1088, 18564152), (2176, 9282076), (4352, 4641038), (8704, 2320519)]