1900495900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{3691}}^1$

素因数の和:3995

約数の個数: 72

約数和(自身を含む): 4358332160

約数和(自身を除く): 2457836260

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 271, 380, 475, 542, 950, 1084, 1355, 1900, 2710, 3691, 5149, 5420, 6775, 7382, 10298, 13550, 14764, 18455, 20596, 25745, 27100, 36910, 51490, 70129, 73820, 92275, 102980, 128725, 140258, 184550, 257450, 280516, 350645, 369100, 514900, 701290, 1000261, 1402580, 1753225, 2000522, 3506450, 4001044, 5001305, 7012900, 10002610, 19004959, 20005220, 25006525, 38009918, 50013050, 76019836, 95024795, 100026100, 190049590, 380099180, 475123975, 950247950, 1900495900]

約数ペア:

[(1, 1900495900), (2, 950247950), (4, 475123975), (5, 380099180), (10, 190049590), (19, 100026100), (20, 95024795), (25, 76019836), (38, 50013050), (50, 38009918), (76, 25006525), (95, 20005220), (100, 19004959), (190, 10002610), (271, 7012900), (380, 5001305), (475, 4001044), (542, 3506450), (950, 2000522), (1084, 1753225), (1355, 1402580), (1900, 1000261), (2710, 701290), (3691, 514900), (5149, 369100), (5420, 350645), (6775, 280516), (7382, 257450), (10298, 184550), (13550, 140258), (14764, 128725), (18455, 102980), (20596, 92275), (25745, 73820), (27100, 70129), (36910, 51490)]