201551900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{109}}^1$

素因数の和:216

約数の個数: 108

約数和(自身を含む): 493536120

約数和(自身を除く): 291984220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 41, 44, 50, 55, 82, 100, 109, 110, 164, 205, 218, 220, 275, 410, 436, 451, 545, 550, 820, 902, 1025, 1090, 1100, 1199, 1681, 1804, 2050, 2180, 2255, 2398, 2725, 3362, 4100, 4469, 4510, 4796, 5450, 5995, 6724, 8405, 8938, 9020, 10900, 11275, 11990, 16810, 17876, 18491, 22345, 22550, 23980, 29975, 33620, 36982, 42025, 44690, 45100, 49159, 59950, 73964, 84050, 89380, 92455, 98318, 111725, 119900, 168100, 183229, 184910, 196636, 223450, 245795, 366458, 369820, 446900, 462275, 491590, 732916, 916145, 924550, 983180, 1228975, 1832290, 1849100, 2015519, 2457950, 3664580, 4031038, 4580725, 4915900, 8062076, 9161450, 10077595, 18322900, 20155190, 40310380, 50387975, 100775950, 201551900]

約数ペア:

[(1, 201551900), (2, 100775950), (4, 50387975), (5, 40310380), (10, 20155190), (11, 18322900), (20, 10077595), (22, 9161450), (25, 8062076), (41, 4915900), (44, 4580725), (50, 4031038), (55, 3664580), (82, 2457950), (100, 2015519), (109, 1849100), (110, 1832290), (164, 1228975), (205, 983180), (218, 924550), (220, 916145), (275, 732916), (410, 491590), (436, 462275), (451, 446900), (545, 369820), (550, 366458), (820, 245795), (902, 223450), (1025, 196636), (1090, 184910), (1100, 183229), (1199, 168100), (1681, 119900), (1804, 111725), (2050, 98318), (2180, 92455), (2255, 89380), (2398, 84050), (2725, 73964), (3362, 59950), (4100, 49159), (4469, 45100), (4510, 44690), (4796, 42025), (5450, 36982), (5995, 33620), (6724, 29975), (8405, 23980), (8938, 22550), (9020, 22345), (10900, 18491), (11275, 17876), (11990, 16810)]