643770

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{311}}^1$

素因数の和:347

約数の個数: 48

約数和(自身を含む): 1752192

約数和(自身を除く): 1108422

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 207, 230, 311, 345, 414, 622, 690, 933, 1035, 1555, 1866, 2070, 2799, 3110, 4665, 5598, 7153, 9330, 13995, 14306, 21459, 27990, 35765, 42918, 64377, 71530, 107295, 128754, 214590, 321885, 643770]

約数ペア:

[(1, 643770), (2, 321885), (3, 214590), (5, 128754), (6, 107295), (9, 71530), (10, 64377), (15, 42918), (18, 35765), (23, 27990), (30, 21459), (45, 14306), (46, 13995), (69, 9330), (90, 7153), (115, 5598), (138, 4665), (207, 3110), (230, 2799), (311, 2070), (345, 1866), (414, 1555), (622, 1035), (690, 933)]