55121940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{373}}^1\times {\mathrm{821}}^1$

素因数の和:1209

約数の個数: 72

約数和(自身を含む): 167855688

約数和(自身を除く): 112733748

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 373, 746, 821, 1119, 1492, 1642, 1865, 2238, 2463, 3284, 3357, 3730, 4105, 4476, 4926, 5595, 6714, 7389, 7460, 8210, 9852, 11190, 12315, 13428, 14778, 16420, 16785, 22380, 24630, 29556, 33570, 36945, 49260, 67140, 73890, 147780, 306233, 612466, 918699, 1224932, 1531165, 1837398, 2756097, 3062330, 3674796, 4593495, 5512194, 6124660, 9186990, 11024388, 13780485, 18373980, 27560970, 55121940]

約数ペア:

[(1, 55121940), (2, 27560970), (3, 18373980), (4, 13780485), (5, 11024388), (6, 9186990), (9, 6124660), (10, 5512194), (12, 4593495), (15, 3674796), (18, 3062330), (20, 2756097), (30, 1837398), (36, 1531165), (45, 1224932), (60, 918699), (90, 612466), (180, 306233), (373, 147780), (746, 73890), (821, 67140), (1119, 49260), (1492, 36945), (1642, 33570), (1865, 29556), (2238, 24630), (2463, 22380), (3284, 16785), (3357, 16420), (3730, 14778), (4105, 13428), (4476, 12315), (4926, 11190), (5595, 9852), (6714, 8210), (7389, 7460)]