19382940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{419}}^1$

素因数の和:691

約数の個数: 72

約数和(自身を含む): 59164560

約数和(自身を除く): 39781620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 257, 419, 514, 771, 838, 1028, 1257, 1285, 1542, 1676, 2095, 2313, 2514, 2570, 3084, 3771, 3855, 4190, 4626, 5028, 5140, 6285, 7542, 7710, 8380, 9252, 11565, 12570, 15084, 15420, 18855, 23130, 25140, 37710, 46260, 75420, 107683, 215366, 323049, 430732, 538415, 646098, 969147, 1076830, 1292196, 1615245, 1938294, 2153660, 3230490, 3876588, 4845735, 6460980, 9691470, 19382940]

約数ペア:

[(1, 19382940), (2, 9691470), (3, 6460980), (4, 4845735), (5, 3876588), (6, 3230490), (9, 2153660), (10, 1938294), (12, 1615245), (15, 1292196), (18, 1076830), (20, 969147), (30, 646098), (36, 538415), (45, 430732), (60, 323049), (90, 215366), (180, 107683), (257, 75420), (419, 46260), (514, 37710), (771, 25140), (838, 23130), (1028, 18855), (1257, 15420), (1285, 15084), (1542, 12570), (1676, 11565), (2095, 9252), (2313, 8380), (2514, 7710), (2570, 7542), (3084, 6285), (3771, 5140), (3855, 5028), (4190, 4626)]