31379660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{120691}}^1$

素因数の和:120713

約数の個数: 24

約数和(自身を含む): 70966896

約数和(自身を除く): 39587236

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 120691, 241382, 482764, 603455, 1206910, 1568983, 2413820, 3137966, 6275932, 7844915, 15689830, 31379660]

約数ペア:

[(1, 31379660), (2, 15689830), (4, 7844915), (5, 6275932), (10, 3137966), (13, 2413820), (20, 1568983), (26, 1206910), (52, 603455), (65, 482764), (130, 241382), (260, 120691)]