2045498980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1\times {\mathrm{409}}^1$

素因数の和:821

約数の個数: 96

約数和(自身を含む): 4975891200

約数和(自身を除く): 2930392220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 257, 278, 409, 514, 556, 695, 818, 973, 1028, 1285, 1390, 1636, 1799, 1946, 2045, 2570, 2780, 2863, 3598, 3892, 4090, 4865, 5140, 5726, 7196, 8180, 8995, 9730, 11452, 14315, 17990, 19460, 28630, 35723, 35980, 56851, 57260, 71446, 105113, 113702, 142892, 178615, 210226, 227404, 250061, 284255, 357230, 397957, 420452, 500122, 525565, 568510, 714460, 735791, 795914, 1000244, 1051130, 1137020, 1250305, 1471582, 1591828, 1989785, 2102260, 2500610, 2943164, 3678955, 3979570, 5001220, 7357910, 7959140, 14610707, 14715820, 29221414, 58442828, 73053535, 102274949, 146107070, 204549898, 292214140, 409099796, 511374745, 1022749490, 2045498980]

約数ペア:

[(1, 2045498980), (2, 1022749490), (4, 511374745), (5, 409099796), (7, 292214140), (10, 204549898), (14, 146107070), (20, 102274949), (28, 73053535), (35, 58442828), (70, 29221414), (139, 14715820), (140, 14610707), (257, 7959140), (278, 7357910), (409, 5001220), (514, 3979570), (556, 3678955), (695, 2943164), (818, 2500610), (973, 2102260), (1028, 1989785), (1285, 1591828), (1390, 1471582), (1636, 1250305), (1799, 1137020), (1946, 1051130), (2045, 1000244), (2570, 795914), (2780, 735791), (2863, 714460), (3598, 568510), (3892, 525565), (4090, 500122), (4865, 420452), (5140, 397957), (5726, 357230), (7196, 284255), (8180, 250061), (8995, 227404), (9730, 210226), (11452, 178615), (14315, 142892), (17990, 113702), (19460, 105113), (28630, 71446), (35723, 57260), (35980, 56851)]