12921960

素因数分解:

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

素因数の和:690

約数の個数: 64

約数和(自身を含む): 39009600

約数和(自身を除く): 26087640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 257, 419, 514, 771, 838, 1028, 1257, 1285, 1542, 1676, 2056, 2095, 2514, 2570, 3084, 3352, 3855, 4190, 5028, 5140, 6168, 6285, 7710, 8380, 10056, 10280, 12570, 15420, 16760, 25140, 30840, 50280, 107683, 215366, 323049, 430732, 538415, 646098, 861464, 1076830, 1292196, 1615245, 2153660, 2584392, 3230490, 4307320, 6460980, 12921960]

約数ペア:

[(1, 12921960), (2, 6460980), (3, 4307320), (4, 3230490), (5, 2584392), (6, 2153660), (8, 1615245), (10, 1292196), (12, 1076830), (15, 861464), (20, 646098), (24, 538415), (30, 430732), (40, 323049), (60, 215366), (120, 107683), (257, 50280), (419, 30840), (514, 25140), (771, 16760), (838, 15420), (1028, 12570), (1257, 10280), (1285, 10056), (1542, 8380), (1676, 7710), (2056, 6285), (2095, 6168), (2514, 5140), (2570, 5028), (3084, 4190), (3352, 3855)]