66578940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1753}}^1$

素因数の和:1979

約数の個数: 72

約数和(自身を含む): 203029008

約数和(自身を除く): 136450068

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 211, 422, 633, 844, 1055, 1266, 1753, 1899, 2110, 2532, 3165, 3506, 3798, 4220, 5259, 6330, 7012, 7596, 8765, 9495, 10518, 12660, 15777, 17530, 18990, 21036, 26295, 31554, 35060, 37980, 52590, 63108, 78885, 105180, 157770, 315540, 369883, 739766, 1109649, 1479532, 1849415, 2219298, 3328947, 3698830, 4438596, 5548245, 6657894, 7397660, 11096490, 13315788, 16644735, 22192980, 33289470, 66578940]

約数ペア:

[(1, 66578940), (2, 33289470), (3, 22192980), (4, 16644735), (5, 13315788), (6, 11096490), (9, 7397660), (10, 6657894), (12, 5548245), (15, 4438596), (18, 3698830), (20, 3328947), (30, 2219298), (36, 1849415), (45, 1479532), (60, 1109649), (90, 739766), (180, 369883), (211, 315540), (422, 157770), (633, 105180), (844, 78885), (1055, 63108), (1266, 52590), (1753, 37980), (1899, 35060), (2110, 31554), (2532, 26295), (3165, 21036), (3506, 18990), (3798, 17530), (4220, 15777), (5259, 12660), (6330, 10518), (7012, 9495), (7596, 8765)]