68278515

素因数分解:

$3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{367}}^1$

素因数の和:611

約数の個数: 32

約数和(自身を含む): 111636480

約数和(自身を除く): 43357965

約数列:

[1, 3, 5, 15, 79, 157, 237, 367, 395, 471, 785, 1101, 1185, 1835, 2355, 5505, 12403, 28993, 37209, 57619, 62015, 86979, 144965, 172857, 186045, 288095, 434895, 864285, 4551901, 13655703, 22759505, 68278515]

約数ペア:

[(1, 68278515), (3, 22759505), (5, 13655703), (15, 4551901), (79, 864285), (157, 434895), (237, 288095), (367, 186045), (395, 172857), (471, 144965), (785, 86979), (1101, 62015), (1185, 57619), (1835, 37209), (2355, 28993), (5505, 12403)]