28651525

素因数分解:

$5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1231}}^1$

素因数の和:1274

約数の個数: 36

約数和(自身を含む): 43538880

約数和(自身を除く): 14887355

約数列:

[1, 5, 7, 19, 25, 35, 49, 95, 133, 175, 245, 475, 665, 931, 1225, 1231, 3325, 4655, 6155, 8617, 23275, 23389, 30775, 43085, 60319, 116945, 163723, 215425, 301595, 584725, 818615, 1146061, 1507975, 4093075, 5730305, 28651525]

約数ペア:

[(1, 28651525), (5, 5730305), (7, 4093075), (19, 1507975), (25, 1146061), (35, 818615), (49, 584725), (95, 301595), (133, 215425), (175, 163723), (245, 116945), (475, 60319), (665, 43085), (931, 30775), (1225, 23389), (1231, 23275), (3325, 8617), (4655, 6155)]