217468460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{1231}}^1$

素因数の和:1335

約数の個数: 72

約数和(自身を含む): 509264448

約数和(自身を除く): 291795988

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 73, 110, 121, 146, 220, 242, 292, 365, 484, 605, 730, 803, 1210, 1231, 1460, 1606, 2420, 2462, 3212, 4015, 4924, 6155, 8030, 8833, 12310, 13541, 16060, 17666, 24620, 27082, 35332, 44165, 54164, 67705, 88330, 89863, 135410, 148951, 176660, 179726, 270820, 297902, 359452, 449315, 595804, 744755, 898630, 988493, 1489510, 1797260, 1976986, 2979020, 3953972, 4942465, 9884930, 10873423, 19769860, 21746846, 43493692, 54367115, 108734230, 217468460]

約数ペア:

[(1, 217468460), (2, 108734230), (4, 54367115), (5, 43493692), (10, 21746846), (11, 19769860), (20, 10873423), (22, 9884930), (44, 4942465), (55, 3953972), (73, 2979020), (110, 1976986), (121, 1797260), (146, 1489510), (220, 988493), (242, 898630), (292, 744755), (365, 595804), (484, 449315), (605, 359452), (730, 297902), (803, 270820), (1210, 179726), (1231, 176660), (1460, 148951), (1606, 135410), (2420, 89863), (2462, 88330), (3212, 67705), (4015, 54164), (4924, 44165), (6155, 35332), (8030, 27082), (8833, 24620), (12310, 17666), (13541, 16060)]