19788045008

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{661}}^1\times {\mathrm{19289}}^1$

素因数の和:20055

約数の個数: 40

約数和(自身を含む): 38795199240

約数和(自身を除く): 19007154232

約数列:

[1, 2, 4, 8, 16, 97, 194, 388, 661, 776, 1322, 1552, 2644, 5288, 10576, 19289, 38578, 64117, 77156, 128234, 154312, 256468, 308624, 512936, 1025872, 1871033, 3742066, 7484132, 12750029, 14968264, 25500058, 29936528, 51000116, 102000232, 204000464, 1236752813, 2473505626, 4947011252, 9894022504, 19788045008]

約数ペア:

[(1, 19788045008), (2, 9894022504), (4, 4947011252), (8, 2473505626), (16, 1236752813), (97, 204000464), (194, 102000232), (388, 51000116), (661, 29936528), (776, 25500058), (1322, 14968264), (1552, 12750029), (2644, 7484132), (5288, 3742066), (10576, 1871033), (19289, 1025872), (38578, 512936), (64117, 308624), (77156, 256468), (128234, 154312)]