77901320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{278219}}^1$

素因数の和:278237

約数の個数: 32

約数和(自身を含む): 200318400

約数和(自身を除く): 122417080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 278219, 556438, 1112876, 1391095, 1947533, 2225752, 2782190, 3895066, 5564380, 7790132, 9737665, 11128760, 15580264, 19475330, 38950660, 77901320]

約数ペア:

[(1, 77901320), (2, 38950660), (4, 19475330), (5, 15580264), (7, 11128760), (8, 9737665), (10, 7790132), (14, 5564380), (20, 3895066), (28, 2782190), (35, 2225752), (40, 1947533), (56, 1391095), (70, 1112876), (140, 556438), (280, 278219)]