25463480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{431}}^1$

素因数の和:660

約数の個数: 64

約数和(自身を含む): 65940480

約数和(自身を除く): 40477000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 211, 280, 422, 431, 844, 862, 1055, 1477, 1688, 1724, 2110, 2155, 2954, 3017, 3448, 4220, 4310, 5908, 6034, 7385, 8440, 8620, 11816, 12068, 14770, 15085, 17240, 24136, 29540, 30170, 59080, 60340, 90941, 120680, 181882, 363764, 454705, 636587, 727528, 909410, 1273174, 1818820, 2546348, 3182935, 3637640, 5092696, 6365870, 12731740, 25463480]

約数ペア:

[(1, 25463480), (2, 12731740), (4, 6365870), (5, 5092696), (7, 3637640), (8, 3182935), (10, 2546348), (14, 1818820), (20, 1273174), (28, 909410), (35, 727528), (40, 636587), (56, 454705), (70, 363764), (140, 181882), (211, 120680), (280, 90941), (422, 60340), (431, 59080), (844, 30170), (862, 29540), (1055, 24136), (1477, 17240), (1688, 15085), (1724, 14770), (2110, 12068), (2155, 11816), (2954, 8620), (3017, 8440), (3448, 7385), (4220, 6034), (4310, 5908)]