291216770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1\times {\mathrm{3389}}^1$

素因数の和:4070

約数の個数: 32

約数和(自身を含む): 565533360

約数和(自身を除く): 274316590

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 661, 1322, 3305, 3389, 6610, 6778, 8593, 16945, 17186, 33890, 42965, 44057, 85930, 88114, 220285, 440570, 2240129, 4480258, 11200645, 22401290, 29121677, 58243354, 145608385, 291216770]

約数ペア:

[(1, 291216770), (2, 145608385), (5, 58243354), (10, 29121677), (13, 22401290), (26, 11200645), (65, 4480258), (130, 2240129), (661, 440570), (1322, 220285), (3305, 88114), (3389, 85930), (6610, 44057), (6778, 42965), (8593, 33890), (16945, 17186)]