12921420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6947}}^1$

素因数の和:6990

約数の個数: 48

約数和(自身を含む): 37352448

約数和(自身を除く): 24431028

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 1860, 6947, 13894, 20841, 27788, 34735, 41682, 69470, 83364, 104205, 138940, 208410, 215357, 416820, 430714, 646071, 861428, 1076785, 1292142, 2153570, 2584284, 3230355, 4307140, 6460710, 12921420]

約数ペア:

[(1, 12921420), (2, 6460710), (3, 4307140), (4, 3230355), (5, 2584284), (6, 2153570), (10, 1292142), (12, 1076785), (15, 861428), (20, 646071), (30, 430714), (31, 416820), (60, 215357), (62, 208410), (93, 138940), (124, 104205), (155, 83364), (186, 69470), (310, 41682), (372, 34735), (465, 27788), (620, 20841), (930, 13894), (1860, 6947)]