19420740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{4691}}^1$

素因数の和:4729

約数の個数: 72

約数和(自身を含む): 61483968

約数和(自身を除く): 42063228

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 4691, 9382, 14073, 18764, 23455, 28146, 42219, 46910, 56292, 70365, 84438, 93820, 107893, 140730, 168876, 211095, 215786, 281460, 323679, 422190, 431572, 539465, 647358, 844380, 971037, 1078930, 1294716, 1618395, 1942074, 2157860, 3236790, 3884148, 4855185, 6473580, 9710370, 19420740]

約数ペア:

[(1, 19420740), (2, 9710370), (3, 6473580), (4, 4855185), (5, 3884148), (6, 3236790), (9, 2157860), (10, 1942074), (12, 1618395), (15, 1294716), (18, 1078930), (20, 971037), (23, 844380), (30, 647358), (36, 539465), (45, 431572), (46, 422190), (60, 323679), (69, 281460), (90, 215786), (92, 211095), (115, 168876), (138, 140730), (180, 107893), (207, 93820), (230, 84438), (276, 70365), (345, 56292), (414, 46910), (460, 42219), (690, 28146), (828, 23455), (1035, 18764), (1380, 14073), (2070, 9382), (4140, 4691)]