515777420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{727}}^1\times {\mathrm{1867}}^1$

素因数の和:2622

約数の個数: 48

約数和(自身を含む): 1142319360

約数和(自身を除く): 626541940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 727, 1454, 1867, 2908, 3635, 3734, 7270, 7468, 9335, 13813, 14540, 18670, 27626, 35473, 37340, 55252, 69065, 70946, 138130, 141892, 177365, 276260, 354730, 709460, 1357309, 2714618, 5429236, 6786545, 13573090, 25788871, 27146180, 51577742, 103155484, 128944355, 257888710, 515777420]

約数ペア:

[(1, 515777420), (2, 257888710), (4, 128944355), (5, 103155484), (10, 51577742), (19, 27146180), (20, 25788871), (38, 13573090), (76, 6786545), (95, 5429236), (190, 2714618), (380, 1357309), (727, 709460), (1454, 354730), (1867, 276260), (2908, 177365), (3635, 141892), (3734, 138130), (7270, 70946), (7468, 69065), (9335, 55252), (13813, 37340), (14540, 35473), (18670, 27626)]