128055440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{84247}}^1$

素因数の和:84279

約数の個数: 40

約数和(自身を含む): 313402560

約数和(自身を除く): 185347120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 84247, 168494, 336988, 421235, 673976, 842470, 1347952, 1600693, 1684940, 3201386, 3369880, 6402772, 6739760, 8003465, 12805544, 16006930, 25611088, 32013860, 64027720, 128055440]

約数ペア:

[(1, 128055440), (2, 64027720), (4, 32013860), (5, 25611088), (8, 16006930), (10, 12805544), (16, 8003465), (19, 6739760), (20, 6402772), (38, 3369880), (40, 3201386), (76, 1684940), (80, 1600693), (95, 1347952), (152, 842470), (190, 673976), (304, 421235), (380, 336988), (760, 168494), (1520, 84247)]