87898940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{1019}}^1$

素因数の和:1274

約数の個数: 48

約数和(自身を含む): 195350400

約数和(自身を除く): 107451460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 227, 380, 454, 908, 1019, 1135, 2038, 2270, 4076, 4313, 4540, 5095, 8626, 10190, 17252, 19361, 20380, 21565, 38722, 43130, 77444, 86260, 96805, 193610, 231313, 387220, 462626, 925252, 1156565, 2313130, 4394947, 4626260, 8789894, 17579788, 21974735, 43949470, 87898940]

約数ペア:

[(1, 87898940), (2, 43949470), (4, 21974735), (5, 17579788), (10, 8789894), (19, 4626260), (20, 4394947), (38, 2313130), (76, 1156565), (95, 925252), (190, 462626), (227, 387220), (380, 231313), (454, 193610), (908, 96805), (1019, 86260), (1135, 77444), (2038, 43130), (2270, 38722), (4076, 21565), (4313, 20380), (4540, 19361), (5095, 17252), (8626, 10190)]