80004975

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{479}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 141419520

約数和(自身を除く): 61414545

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 131, 255, 393, 425, 479, 655, 1275, 1437, 1965, 2227, 2395, 3275, 6681, 7185, 8143, 9825, 11135, 11975, 24429, 33405, 35925, 40715, 55675, 62749, 122145, 167025, 188247, 203575, 313745, 610725, 941235, 1066733, 1568725, 3200199, 4706175, 5333665, 16000995, 26668325, 80004975]

約数ペア:

[(1, 80004975), (3, 26668325), (5, 16000995), (15, 5333665), (17, 4706175), (25, 3200199), (51, 1568725), (75, 1066733), (85, 941235), (131, 610725), (255, 313745), (393, 203575), (425, 188247), (479, 167025), (655, 122145), (1275, 62749), (1437, 55675), (1965, 40715), (2227, 35925), (2395, 33405), (3275, 24429), (6681, 11975), (7185, 11135), (8143, 9825)]