212981940

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{394411}}^1$

素因数の和:394429

約数の個数: 48

約数和(自身を含む): 662612160

約数和(自身を除く): 449630220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 394411, 788822, 1183233, 1577644, 1972055, 2366466, 3549699, 3944110, 4732932, 5916165, 7099398, 7888220, 10649097, 11832330, 14198796, 17748495, 21298194, 23664660, 35496990, 42596388, 53245485, 70993980, 106490970, 212981940]

約数ペア:

[(1, 212981940), (2, 106490970), (3, 70993980), (4, 53245485), (5, 42596388), (6, 35496990), (9, 23664660), (10, 21298194), (12, 17748495), (15, 14198796), (18, 11832330), (20, 10649097), (27, 7888220), (30, 7099398), (36, 5916165), (45, 4732932), (54, 3944110), (60, 3549699), (90, 2366466), (108, 1972055), (135, 1577644), (180, 1183233), (270, 788822), (540, 394411)]