199420100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{16481}}^1$

素因数の和:16517

約数の個数: 54

約数和(自身を含む): 475687002

約数和(自身を除く): 276266902

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 220, 242, 275, 484, 550, 605, 1100, 1210, 2420, 3025, 6050, 12100, 16481, 32962, 65924, 82405, 164810, 181291, 329620, 362582, 412025, 725164, 824050, 906455, 1648100, 1812910, 1994201, 3625820, 3988402, 4532275, 7976804, 9064550, 9971005, 18129100, 19942010, 39884020, 49855025, 99710050, 199420100]

約数ペア:

[(1, 199420100), (2, 99710050), (4, 49855025), (5, 39884020), (10, 19942010), (11, 18129100), (20, 9971005), (22, 9064550), (25, 7976804), (44, 4532275), (50, 3988402), (55, 3625820), (100, 1994201), (110, 1812910), (121, 1648100), (220, 906455), (242, 824050), (275, 725164), (484, 412025), (550, 362582), (605, 329620), (1100, 181291), (1210, 164810), (2420, 82405), (3025, 65924), (6050, 32962), (12100, 16481)]