80856880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77747}}^1$

素因数の和:77773

約数の個数: 40

約数和(自身を含む): 202455792

約数和(自身を除く): 121598912

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 77747, 155494, 310988, 388735, 621976, 777470, 1010711, 1243952, 1554940, 2021422, 3109880, 4042844, 5053555, 6219760, 8085688, 10107110, 16171376, 20214220, 40428440, 80856880]

約数ペア:

[(1, 80856880), (2, 40428440), (4, 20214220), (5, 16171376), (8, 10107110), (10, 8085688), (13, 6219760), (16, 5053555), (20, 4042844), (26, 3109880), (40, 2021422), (52, 1554940), (65, 1243952), (80, 1010711), (104, 777470), (130, 621976), (208, 388735), (260, 310988), (520, 155494), (1040, 77747)]