2981720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{463}}^1$

素因数の和:504

約数の個数: 64

約数和(自身を含む): 8017920

約数和(自身を除く): 5036200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 463, 644, 805, 920, 926, 1288, 1610, 1852, 2315, 3220, 3241, 3704, 4630, 6440, 6482, 9260, 10649, 12964, 16205, 18520, 21298, 25928, 32410, 42596, 53245, 64820, 74543, 85192, 106490, 129640, 149086, 212980, 298172, 372715, 425960, 596344, 745430, 1490860, 2981720]

約数ペア:

[(1, 2981720), (2, 1490860), (4, 745430), (5, 596344), (7, 425960), (8, 372715), (10, 298172), (14, 212980), (20, 149086), (23, 129640), (28, 106490), (35, 85192), (40, 74543), (46, 64820), (56, 53245), (70, 42596), (92, 32410), (115, 25928), (140, 21298), (161, 18520), (184, 16205), (230, 12964), (280, 10649), (322, 9260), (460, 6482), (463, 6440), (644, 4630), (805, 3704), (920, 3241), (926, 3220), (1288, 2315), (1610, 1852)]