28281890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31079}}^1$

素因数の和:31106

約数の個数: 32

約数和(自身を含む): 62657280

約数和(自身を除く): 34375390

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 31079, 62158, 155395, 217553, 310790, 404027, 435106, 808054, 1087765, 2020135, 2175530, 2828189, 4040270, 5656378, 14140945, 28281890]

約数ペア:

[(1, 28281890), (2, 14140945), (5, 5656378), (7, 4040270), (10, 2828189), (13, 2175530), (14, 2020135), (26, 1087765), (35, 808054), (65, 435106), (70, 404027), (91, 310790), (130, 217553), (182, 155395), (455, 62158), (910, 31079)]