3894280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7489}}^1$

素因数の和:7513

約数の個数: 32

約数和(自身を含む): 9437400

約数和(自身を除く): 5543120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 7489, 14978, 29956, 37445, 59912, 74890, 97357, 149780, 194714, 299560, 389428, 486785, 778856, 973570, 1947140, 3894280]

約数ペア:

[(1, 3894280), (2, 1947140), (4, 973570), (5, 778856), (8, 486785), (10, 389428), (13, 299560), (20, 194714), (26, 149780), (40, 97357), (52, 74890), (65, 59912), (104, 37445), (130, 29956), (260, 14978), (520, 7489)]