128904076

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{1531}}^1$

素因数の和:1670

約数の個数: 48

約数和(自身を含む): 269043712

約数和(自身を除く): 140139636

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 97, 124, 194, 217, 388, 434, 679, 868, 1358, 1531, 2716, 3007, 3062, 6014, 6124, 10717, 12028, 21049, 21434, 42098, 42868, 47461, 84196, 94922, 148507, 189844, 297014, 332227, 594028, 664454, 1039549, 1328908, 2079098, 4158196, 4603717, 9207434, 18414868, 32226019, 64452038, 128904076]

約数ペア:

[(1, 128904076), (2, 64452038), (4, 32226019), (7, 18414868), (14, 9207434), (28, 4603717), (31, 4158196), (62, 2079098), (97, 1328908), (124, 1039549), (194, 664454), (217, 594028), (388, 332227), (434, 297014), (679, 189844), (868, 148507), (1358, 94922), (1531, 84196), (2716, 47461), (3007, 42868), (3062, 42098), (6014, 21434), (6124, 21049), (10717, 12028)]