399102405

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{49919}}^1$

素因数の和:49981

約数の個数: 32

約数和(自身を含む): 704471040

約数和(自身を除く): 305368635

約数列:

[1, 3, 5, 13, 15, 39, 41, 65, 123, 195, 205, 533, 615, 1599, 2665, 7995, 49919, 149757, 249595, 648947, 748785, 1946841, 2046679, 3244735, 6140037, 9734205, 10233395, 26606827, 30700185, 79820481, 133034135, 399102405]

約数ペア:

[(1, 399102405), (3, 133034135), (5, 79820481), (13, 30700185), (15, 26606827), (39, 10233395), (41, 9734205), (65, 6140037), (123, 3244735), (195, 2046679), (205, 1946841), (533, 748785), (615, 648947), (1599, 249595), (2665, 149757), (7995, 49919)]