128867918

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{229}}^1\times {\mathrm{251}}^1$

素因数の和:560

約数の個数: 32

約数和(自身を含む): 208656000

約数和(自身を除く): 79788082

約数列:

[1, 2, 19, 38, 59, 118, 229, 251, 458, 502, 1121, 2242, 4351, 4769, 8702, 9538, 13511, 14809, 27022, 29618, 57479, 114958, 256709, 281371, 513418, 562742, 1092101, 2184202, 3391261, 6782522, 64433959, 128867918]

約数ペア:

[(1, 128867918), (2, 64433959), (19, 6782522), (38, 3391261), (59, 2184202), (118, 1092101), (229, 562742), (251, 513418), (458, 281371), (502, 256709), (1121, 114958), (2242, 57479), (4351, 29618), (4769, 27022), (8702, 14809), (9538, 13511)]