16506820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{359}}^1$

素因数の和:409

約数の個数: 72

約数和(自身を含む): 40219200

約数和(自身を除く): 23712380

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 121, 190, 209, 220, 242, 359, 380, 418, 484, 605, 718, 836, 1045, 1210, 1436, 1795, 2090, 2299, 2420, 3590, 3949, 4180, 4598, 6821, 7180, 7898, 9196, 11495, 13642, 15796, 19745, 22990, 27284, 34105, 39490, 43439, 45980, 68210, 75031, 78980, 86878, 136420, 150062, 173756, 217195, 300124, 375155, 434390, 750310, 825341, 868780, 1500620, 1650682, 3301364, 4126705, 8253410, 16506820]

約数ペア:

[(1, 16506820), (2, 8253410), (4, 4126705), (5, 3301364), (10, 1650682), (11, 1500620), (19, 868780), (20, 825341), (22, 750310), (38, 434390), (44, 375155), (55, 300124), (76, 217195), (95, 173756), (110, 150062), (121, 136420), (190, 86878), (209, 78980), (220, 75031), (242, 68210), (359, 45980), (380, 43439), (418, 39490), (484, 34105), (605, 27284), (718, 22990), (836, 19745), (1045, 15796), (1210, 13642), (1436, 11495), (1795, 9196), (2090, 7898), (2299, 7180), (2420, 6821), (3590, 4598), (3949, 4180)]