638544180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{149893}}^1$

素因数の和:149976

約数の個数: 48

約数和(自身を含む): 1813117824

約数和(自身を除く): 1174573644

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 149893, 299786, 449679, 599572, 749465, 899358, 1498930, 1798716, 2248395, 2997860, 4496790, 8993580, 10642403, 21284806, 31927209, 42569612, 53212015, 63854418, 106424030, 127708836, 159636045, 212848060, 319272090, 638544180]

約数ペア:

[(1, 638544180), (2, 319272090), (3, 212848060), (4, 159636045), (5, 127708836), (6, 106424030), (10, 63854418), (12, 53212015), (15, 42569612), (20, 31927209), (30, 21284806), (60, 10642403), (71, 8993580), (142, 4496790), (213, 2997860), (284, 2248395), (355, 1798716), (426, 1498930), (710, 899358), (852, 749465), (1065, 599572), (1420, 449679), (2130, 299786), (4260, 149893)]