1321921510

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{207523}}^1$

素因数の和:207557

約数の個数: 48

約数和(自身を含む): 2980874736

約数和(自身を除く): 1658953226

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 455, 490, 637, 910, 1274, 3185, 6370, 207523, 415046, 1037615, 1452661, 2075230, 2697799, 2905322, 5395598, 7263305, 10168627, 13488995, 14526610, 18884593, 20337254, 26977990, 37769186, 50843135, 94422965, 101686270, 132192151, 188845930, 264384302, 660960755, 1321921510]

約数ペア:

[(1, 1321921510), (2, 660960755), (5, 264384302), (7, 188845930), (10, 132192151), (13, 101686270), (14, 94422965), (26, 50843135), (35, 37769186), (49, 26977990), (65, 20337254), (70, 18884593), (91, 14526610), (98, 13488995), (130, 10168627), (182, 7263305), (245, 5395598), (455, 2905322), (490, 2697799), (637, 2075230), (910, 1452661), (1274, 1037615), (3185, 415046), (6370, 207523)]