25101320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{653}}^1$

素因数の和:726

約数の個数: 48

約数和(自身を含む): 58447980

約数和(自身を除く): 33346660

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 653, 961, 1240, 1306, 1922, 2612, 3265, 3844, 4805, 5224, 6530, 7688, 9610, 13060, 19220, 20243, 26120, 38440, 40486, 80972, 101215, 161944, 202430, 404860, 627533, 809720, 1255066, 2510132, 3137665, 5020264, 6275330, 12550660, 25101320]

約数ペア:

[(1, 25101320), (2, 12550660), (4, 6275330), (5, 5020264), (8, 3137665), (10, 2510132), (20, 1255066), (31, 809720), (40, 627533), (62, 404860), (124, 202430), (155, 161944), (248, 101215), (310, 80972), (620, 40486), (653, 38440), (961, 26120), (1240, 20243), (1306, 19220), (1922, 13060), (2612, 9610), (3265, 7688), (3844, 6530), (4805, 5224)]