321385480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{618049}}^1$

素因数の和:618073

約数の個数: 32

約数和(自身を含む): 778743000

約数和(自身を除く): 457357520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 618049, 1236098, 2472196, 3090245, 4944392, 6180490, 8034637, 12360980, 16069274, 24721960, 32138548, 40173185, 64277096, 80346370, 160692740, 321385480]

約数ペア:

[(1, 321385480), (2, 160692740), (4, 80346370), (5, 64277096), (8, 40173185), (10, 32138548), (13, 24721960), (20, 16069274), (26, 12360980), (40, 8034637), (52, 6180490), (65, 4944392), (104, 3090245), (130, 2472196), (260, 1236098), (520, 618049)]